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Exam 4
ACS, VTE, Anti-platelet, CHF
296
Pharmacology
Graduate
03/10/2011

Additional Pharmacology Flashcards

 


 

Cards

Term
What is the typical cause of acute coronary syndromes?
Definition
Plaque rupture
Term
What are the steps of clot formation (3 A's)
Definition
1) adherence 2) activation 3) aggregation
Term
What two drugs might be used for chest pain associated w/ MI?
Definition
Nitrates and morphine
Term
What differentiates Non-STEMI?
Definition
Normal to increased CK and minor troponin increase. No ST elevation
Term
STEMI signs
Definition
Increase in CK and troponins as-well-as ST segment elevation
Term
What differentiates Unstable Angina?
Definition
Larger lipid core in atherosclerotic lesion, more inflammatory cells, thin fibrous cap. No CK elevation at all (no cell death)
Term
What is the 5 drug trail mix for post MI?
Definition
1) ASA 2) BB 3) ACE (LVD, HTN, Diabetic neuropathy) 4) Statin 5) Plavix
Term
What is the primary goal of treating UA or MI?
Definition
Restore blood flow
Term
Post MI remodeling is seen on ECHO by dilation of left ventricle. What drug prevents this via the neurohormonal pathway?
Definition
ACE by way of RAAS
Term
What is the TIMI risk score?
Definition
A classification system for people w/ similar chest pain aids in differentiation
Term
What are TIMI risk factors?
Definition
Age >65, more than 3 CAD RF, Coronary stenosis, ST elevation, Severe angina (>2 in last day), Daily ASA in last 7 days, Elevated CK
Term
What is TIMI used for?
Definition
Evaluate risk in Unstable Angina vs Non-STEMI
Term
What is the preferred treatment for STEMI? PCI or Fibrinolytic?
Definition
PCI, opens the blockage the majority of the time, Fibrinolytics are only about 75% of the time
Term
Early drug thereapys in ACS consists of 4 drugs
Definition
ASA- 160-325mg first dose chewed
NTG- SL then IV
Plavix- 600mg LD then 75mg
Lovenox/LMWH/Fondoparinux
Term
What is the dosing associated w/ IV NTG?
Definition
Start at 5mcg/min increase by 5mcg every 5min until pain is resolved. Max of 200mcg, but has seen up to 400.
Term
What irreveribly binds P2Y12 receptors to block them?
Definition
Plavix and Effient(prasugrel)
Term
What are the pros and cons of Effient (prasugrel)
Definition
Strong, better MI prevention, No PPI/P450 problems
Serious bleeds/intracranial hemorrages
Term
What is a revesible P2Y12 inhibitor that's not yet FDA approved?
Definition
Ticagrelor
Term
What pathway is shared by Plavix and most PPI's?
Definition
2C19
Term
What injectable anticoagulent has renal dosing protocol?
Definition
Lovenox
Term
What do you do if you have a patient that gets HIT?
Definition
DC immediately and switch to a direct thrombin inhibitor (bivalrudin, hirudin, desrudin, argatroban, dabigatran[pradaxa])
Term
If MI Sx have been for less than 12h what do you do?
Definition
PCI or Fibrinolytics
Term
Which heparinoind doesn't need renal adjustment?
Definition
UFH
Term
What is the dose of UFH in HF pt?
Definition

Bolus 60U/kg Infusion of 12U/kg/hr 

 

NOT full dose (prophylactic)

Term
What dosing considerations do you have to make with UFH?
Definition
Pt >60yo may req lower doses
Term
LMWH (Enoxaparin) dosing considerations
Definition
Dec dose by 50% by increasing interval to 24h if CrCl<30ml/min
Term
What dosing considerations need to be made for Eptifibatide?
Definition
Decrease infusion by 50% to 1ug/kg/min if CrCl<50ml/min or SrCr 2-4mg/dL
Term
What class of drug is Eptifibatide?
Definition
Glycoprotein (GP) IIb/IIIa inhibitor
Term
How do you know fibrinolytics are working in a patient?
Definition
Chest pain goes away
ST elevation goes down
Term
Problem w/ fibrinolytic?
Definition
Intracranial hemmorhage
Term
Which drugs might you give for a NSTEMI?
Clopidogrel, ASA, TPA
Definition
Clopidogrel
ASA
NOT TPA!!! no fibrinolytics for NSTEMI!!!
Term
When might you give a fibrinolytic?
Definition

ONLY for STEMI pt

When PCI is not readily available

Term
Heparin dose DVT and dosing for ACS
Definition
80U/kg- (17u/kg/hr infusion) no additional drugs
60u/kg- (12u/kg/hr infusion) Giving ASA, clopidogrel etc so you don't need as much w/ ACS. Be sure to know ACS heparin dose
Term
What is the ACS heparin dose?
Definition
60u/kg (infusion rate 12u/kg/hr)
Term
Require renal dosing (Heparinoid and GP2B3A inhib)
Definition
Enoxaparin Integrelin (eptifibitide)
Term
Problem w/ bivalirudin
Definition
cost
Term
Why is enoxaparin (lovenox) preffered
Definition
Better outcomes in trials
Term
5 drugs in the fibrinoltyic class
Definition
TPA, TNK-t-PA, reteplase, altaplase, RPA
Term
What is the benefit of RPA?
Definition
One bolus for 30min, good because can be admin by EMT
Term
What if a pt got one bolus of RPA and sx has been relieved?
Definition
Still give them the second bolus
Term
Why is anticoagulation inportant with fibrinolytics?
Definition
After the clot is busted, the original cause of the clot is normally still there (Plaque rupture etc).
Term
What is good about streptokinase?
Definition
It's CHEAP and you don't have to anticoagulate
Term
What drug therapy is recomended for pt who've been Sx for over 12h with MI?
Definition
ASA, Plavix, BB, Ace, Statin, Aldosterone antagonist
Term
What lab findings are present in UA?
Definition
CK- no
ECG early- ST depression, T wave inversion
ECG late- no q wave
Term
What lab findings do you see with NTEMI?
Definition
CK- yes
ECG early- ST dep T wave inversion
ECG late- No q wave
Term
What are the lab findings for STEMI?
Definition
CK- Yes
ECG early- ST elevation
ECG late- Q wave developes
Term
What is the effect of MI on LDL?
Definition
Decreases LDL for up to 4 mo. Don't be fooled keep your statin onboard
Term
What is the most sensative way of detecting Mi?
Definition
Increase in troponins.
Term
Which CK is for cardiac?
Definition
CKmb
Term
Types of CK's
Definition
Muscle- (statins)
Brain-
Myocardial
Term
Most commonly used test to monitor UFH Tx
Definition
aPTT (activated partial thromboplastin time)
Term
A quantitative measure of fibrin breakdown on serum (marker for thrombotic activitiy)
Definition
D-dimer
Term
monitoring parameter to manage warfarin
Definition
INR
Term
drug used to reverse over anticoagulation or warfarin overdose
Definition
Vitamin K
Term
The majority of thrombi begin where?
Definition
Lower extrimities
Term
Once pt is stabilized on warfarin monitoring should be performed _________
Definition
Monthly
Term
What is the most common adverse event associated with antithrombolytic drugs?
Definition
Bleeding
Term
What is the only available factor Xa inhibitor available in the US
Definition
Fondaparinux (Arixtra)
Term
VTE factors can be categorized as one off the three elements of ________ triad
Definition
Virechows
Term
What invasive test is the gold standard for diagnosing DVT?
Definition
Venography (Although it's not commonly used)
Term
How does APAP taken with warfarin affect the pt's INR?
Definition
Increases
Term
What can be used to reverse the effects of UFH and partially reverse the effects of LMWH's
Definition
Protamine
Term
How should warfarin dosing changes be made?
Definition
Based on a weekly dose
Term
Overlap of parenteral anticoagulation and warfarin should last at least ______
Definition
Five Days
Term
What class of drug is considered the treatment of choice in pt w/ history of HIT?
Definition
Direct Thrombin Inhibitors (DTI)such as Argatroban, Dabigatran (Pradaxa), Hirudin, Bivalrudin (Angiomax) etc
Term
What is the strongest known risk factor for DVT or PE?
Definition
Prior history of PE or DVT
Term
Thrombolytics are reserved for whom?
Definition
High risk patients
Term
What is the most commonly used test to diagnose PE?
Definition
CT scan
Term
Due to improved pharmacodynamics/pharmacokinetics of LMWH pt's usually don't require _______
Definition
routine monitoring
Term
Initial treatment of VTE includes a parenteral anticoagulation (UFH/LMWH) overlapped with warfarin for alteast 5 days until INR is greater than _______
Definition
Two, INR must be greater than two to get maximum benefit from warfarin
Term
What is the name of the recently approved oral DTI?
Definition
Pradaxa (Dabigatran)
Term
This drug appears to be as effective as LMWH for prevention of VTE in highest risk population but requires frequent monitoring and dosing adjustment
Definition
Warfarin
Term
LMWH have an improved side effect profile compared to UFH including a lower incidence of this platelet disorder _________
Definition
HIT, if a patient experiences HIT while on UFH though you need to go straight to using a DTI
Term
Activated ________ resistance is the most common genetic disorder of hypercoagulability
Definition
Protein C
Term
When should you use a DTI?
Definition
HIT
Term
9% of this ethnic group possesses SCT and 1:600 is homozygous for sickle cell
Definition
African American
Term
The sickle Hb gene is protective against what infection?
Definition
Plasmodium falciparum (Malaria)
Term
Coagulation disorders are common in SCD in addition the ____________ dosen't function properly increasing suceptability to infections caused by encapsulated organisms like Strep pneumoniae
Definition
Spleen
Term
There are two vaccines available to protect SCD patients from infections. What are they and when should they be given?
Definition

PCV7 given at infancy PPV23 given after age 2

 

Both are Pneumococcal vaccines

Term
_______ can benefit SCD patients through multiple mechanisms including inc HbF
Definition
Hydroxyurea
Term
What is the dosing for Hydroxyurea?
Definition
10-15mg/kg/d max of 35mg/kg/day
Term
How is hydroxyurea supplied?
Definition
200, 300, 400, 500mg caps
Term
How much of a change can Hydroxyura have on HbF?
Definition
15-20%
Term
_____ is an injectabl NSAID which is useful in vasooclclusive pain crisis affecting BONE and JOINTS
Definition
Ketorolac
Term
How many days can Ketorolac be used and why?
Definition
5 days
because of GI bleeds and ADRs
Term
What type of Hb do we want to induce production in SCD pt? (Esp those in frequent crisis)
Definition
Fetal Hb (HbF)
Term
What supplement might be given to SCD pt (esp those hemolysing, pregnant and other certain Tx)
Definition
Folic acid (1mg/day)
Term
What catalizes the conversion of fibrinogn to fibrin?
Definition
Thrombin
Term
What is the most common inherited bleeding disorder?
Definition
Von Willebrands
Term
Vaccination against what disease is recommended in all pt w/ vWF (von willibrands factor) deficiency
Definition
Hepatitis (A and B currently no effective HepC vaccine)
Term
What do clotting factors II, VII, IX, X depend on?
Definition
Vitamin K
Term
What class of drug should be avoided in Pt w/ hemophilia to treat pain due to binding w/ plts and inc bleeding risk
Definition
NSAIDs
Term
What disorder does factor IX deficency result in
Definition
Hemophilia B
Term
What drug can be used to treat DIC
Definition
Heparin, but it's contraindicated in Pt w/ serious or life-threatening bleeding
Term
This class of drugs can be used in combination w/ PEX to treat TTP (Thrombotic thrombocytopenia pupura)
Definition
Corticosteroids, because of their immunosuppresive effects
Term
What dose purpura look like?
Definition
purple brusing spots
Term
What is the primary treatment for RICDs?
Definition
Single donor fresh frozen plasma
Term
Name two fibrinolysis inhibitors
Definition
aminocaproic acid
Tranexamic acid
Term
Hemophilias often result in a symptom that causes bleeding into joint space, what is this symptom called?
Definition
Hemarthrosis
Term
Excessive and unregulated generation of thrombin leads to agressive and compensitory ____________ in DIC
Definition
Fibrinolysis
Term
Hemophilia A is a deficiency in what?
Definition
Factor IIX (8)
Term
This is the present treatment for TTP
Definition
Plasma exchange (NOT for pregnancy)
Term
Most patients with mild to moderate hemophillia A can be treated with what?
Definition
DDAVP (Vassopressin)
Term
Treatment of ITP (idiopathic thrombocytopenic purpura) is based on this
Definition
Symptom Severity
Term
What can cause DIC?
Definition
Infectious- Mennengitis
Obsetric- amniotic fluid in blood stream
Tissue injury (burn, crush etc)
Term
How to treat DIC
Definition
Aggressively treat underlying illness
Term
If treating DIC for bleeding or clotting how do you treat them?
Definition
Which ever is most urgent you would treat
Term
How would you administer heparin in a DIC pt?
Definition
prophylactic dose, NOT full therapeutic dose
Term
Therapeutic heparin is dosed how
Definition
IV
Term
Prophylactic doses of heparin (used in DIC) is dosed how?
Definition
SubQ
Term
fibrinogen in FFP can cause pt to what?
Definition
bleed more
Term
ITP (immune thrombocytopenic purpera) is acquired how?
Definition
Immune or drug induced
Term
Why wouldn't you treat a child that has ITP?
Definition
Often times ITP in children resolves spontaniously
Term
ITP presentation
Definition
Nose bleeds, gum bleeds, peteci, purpera
Term
Whats the difference in petechia and purpura?
Definition
Petechia is petite (smaller)
Purpura is larger
Term
Should adults with ITP be treated?
Definition
Yes! always
Term
What is the purpose of splenectomy in ITP?
Definition
Removes immunogenic factor of ITP (antibody production)
Also sequesters AB attacked cells
Term
WHen the spleen is removed what is important to do?
Definition
Get vaccines!
Term
How is vaccination preffered in ITP in relation to splenectomy
Definition
2wks prior to splenectomy
Term
What drug might you use in ITP?
Definition
Corticosteroids
Azothioprine
Cyclophosphamide
(pg1134)immunosuppression
Term
What is TTP?
Definition
Low ptlt count AND making clots (counterintitive)

Fever, hemolytic anemia, neurologic symptoms (HA, speach, etc)
Term
What is the PT and PTT for TTP?
Definition
Both are normal oddly enough
Term
What drugs might cause TTP?
Definition
Anti-neoplastic drugs
Ticlid
Plavix
Antibiotics
Immunosupressants
Table 67.10
Term
What is the preffered treatment of TTP?
Definition
Single donor Plasma exchange
Term
What is a potential problem with plasma exchange?
Definition
Fluid overload
Term
What is the pathophysilogic mechanism of ACS?
Definition
Plaque rupture
Term
How is lovenox eliminated?
Definition
Renally, important because it has to be renally dosed otherwise the bleed out
Term
What 4 drugs for ACS?
Definition
Anticoagulant (LMWH, UFH, DTI) Nitro IV and SL Clopedigrel ASA
Term
When might you try to open a blood vessel up even after 12h?
Definition
If Sx comes and goes
Term
What is the LDL goal in MI?
Definition
<70
Term
What drug is under-utilized for HF/post-MI and useful when EF <40
Definition
Aldosterone antagonist (Spronolactone or eplerenone)
May be a trailmix add-on
Term
5 drug trailmix
Definition
ASA Plavix Statin ACE/ARB BB (Spironolactone good addition)
Term
Which should be used in ACS? Plavix or ASA?
Definition
BOTH! Combo antiplatelet therapy ASA and Plavix better than ASA alone in ACS
Term
If EF is fairly normal and no other reason to be on an ACE, drop the ACE if you have to drop one
Definition
Term
Both LMWH and Eptifibitide require what?
Definition
Renal adjustment
UFH DOESN"T!
Term
Name top 3 fibrinolytics
Definition
TPA, RPA, TNKTPA
Term
Which fibrinolytic is best per Dr. Bottorff?
Definition
RPA, recombinant TPA that is not wt based dosing and can be administered in 2 boluses 30min apart
Term
What is TNKTPA's benefit and cheviot?
Definition
1 shot bolus, wt based
Term
Why is anticoagulation important w/ fibrinolytics?
Definition
Cause of thrombus is still present
Term
What is the treatment of NSTEMI ?
Definition
Same as STEMI minus the fibrinolytic
ASA, clopedigrel, IV nitro, Heparin
Term
Abciximab (Reapro) andEptifibitide (Intergrolyn) is what?
Definition
Glycoprotein IIa/IIIb inhibitor
If you're at a hospital w/ a cathlab, if you're highrisk on the TIMI, add a GPIIaIIIB
Term
How does MI affect liver?
Definition
Switches to acute phase reactants and quits making LDL so LDL will drop massively w/in 24h and stay that way for 2-4mo
Term
Leg clots are usually unilateral, swelling, and palpible
Definition
Term
What are the three main risk factors associated w/ VTE? (Virchows triad)
Definition
Venoustasis
Hypercoagulable states
Vascular injury
Term
what is the signifigance of virchows triad?
Definition
If you have more than one leg of the triangle you are at very high risk of VTE
Term
Other VTE risk factors
Definition
Age over 40
Sitting long times (over 5hr)
Acute MI
General anesthesia
Prostetic valves
Malignancy
High dose estrogen
Endstage renal disease
Term
Extrinsic pathway of hypercoagulability (clotting)
Definition
Tissue factor, tissue damage
Term
What clotting factors are most important?
Definition
5,7,8,9,11
Term
Hemophilia involves which factors?
Definition
8(a) or 9(b) either one depeding on type
Term
Intrinsic pathway of clott formation
Definition
drug induced/chemical (too much estrogen)
Term
which two factors are the most important?
Definition
2(prothrombin) and 10. they are involved in both pathways. So if drug knocks out either one then it will stop the cascade no matter how it got started
Term
Clotting factors only work when they are ACTIVATED. other wise they are always there, just not active
Definition
Term
what do you look for in labs w/ clott?
Definition
VQ Scan- lung mainly
Ultrasound- only noninvasive look for a clot
Term
VQ scan consists of?
Definition
Inhaling a radioactive material and imaging
Cannot determine clot, not diagnosable, this is for evidence
Can clot rule out, not in
Term
What guidelines are used for clotts?
Definition
CHEST guidelines
Term
People in ICU are what level of risk?
Definition
VERY high, most pt (unless reason not to) should have clot prophylaxis (lovenox daily)
Term
Lovenox dosing
Definition
Moderate-risk: 40mg q24h (SubQ)
High-risk: 30mg q 12h
Morbidly-obese: 30mg q 12h
Term
Mechanical venoustasis prevention
Definition
Graduated compression stocking
Inflatable leg cuffs
Term
Lovenox/LMWH is very important in joint replacement/orthopedic surgery VERY HIGH RISK for VTE
Definition
Term
if a clot is found you begin heparin/heparinoids
Definition
Term
How do you determine which heparin/heparinoid to use in DVT?
Definition
Cost- UFH is cheaper but LMWH might get them out faster
Term
what treatment might you use for leg clot?
Definition
1mg/kg lovenox SQ and start them on warfarin
Term
what is the antidote for warfarin?
Definition
Vitamin K tablets
Term
Weekly dose adjustment of warfarin in what % range?
Definition
5-20%
Term
What is therapeutic target and range for VTE?
Definition
2.5
2-3
Term
What are the chest guidelines for INR being too high? INR 3.1-5
Definition
3.1-5: Omit next few warfarin doses and/or restart at lower dose when INR. No dose rdxn required
Term
Soy is a major vitamin K food! Watch w/ coumadin
Definition
Term
INR 5.1-9 with no bleeding
Definition
Omit next 1–2 doses,  restart at lower dose when INR approaches target 
Term
INR 5.1-9 with need for proceedure
Definition
Vitamin K1 2–4 mg orally (expected reversal within 24 hours); give additional1–2 mg if INR remains high at 24 hours
Term
INR 9.1-20 with no bleeding
Definition

Stop warfarin

give vitamin K1 3–5 mg repeat if needed

Term
INR >20 or serious bleeding
Definition

Stop warfarin

vitamin K1 10mg

repeat vitamin K1 every 12h plasma transfusion or prothrombin complex prn  heparin until pt responsive to warfarin

Term
Life threatening bleed due to warfarin
Definition

prothrombin complex concentrate

10 mg of vitamin K1 

Term
Will pts on therapeutic INR bruise easier?
Definition
YES
Term
What is bridge therapy?
Definition
When pt stops coumadin for proceedure (OK for DVT not for mechanical valves)
Start LMWH (lovenox) 5 days before proceedure and stop coumadin then stop for proceedure and start as soon as you're done w/ proceedure and switch over to coumadin again
Term
In the short term what does alcohol do to INR?
Definition
Increase INR
Term
In the long term how does alcohol effect INR?
Definition
Decreases (need to inc coumadin)
Term
Heparin (esp UFH) osteopenia/osteoporos/dec bone mass
Definition
Is pt pregnant? This makes it even worse. DVT in preg be ware of this, make sure plenty of Ca and minimize heparin exposure
Term
Which would you DC in a HF pt?
Norpace/disopyramide
Actos/pioglitazone
Nsaid
Acetaminophen
Definition
All except APAP can contribute to HF
Term
Things that can cause a stable HF pt to become unstable
Definition
New ischemia
Poorly controlled HTN
Worsening renal fxn
#1 is NONCOMPLIANCE
Term
Orthopnea, inability to sleep due to HF often prop themselves up with several pillows at night
Definition
Term
PND- paroxymismal nocturnal dyspenia
Definition
shortness of breath that woke me up related to HF
Term
What does a BNP of 100 or less indicate?
Definition
No HF
Term
What does a BNP of 100-300 indicate?
Definition
some HF is present
Term
What does a BNP of 300-600 indicate?
Definition
Mild HF
Term
What does a BNP of 600-900 indicate?
Definition
Moderate HF
Term
What does a BNP of more than 900 indicate?
Definition
Severe HF
Term
What are the goals of therapy in HF?
Definition
Improve Sx/fxnal class
Slow progression- determined by hospital visit decrease
Improve survival
Term
do loop diuretics improve survival?
Definition
NO
Term
What diuretic is the best to use to remove fluid in HF?
Definition
Loops
Term
What is the target wt of a HF pt called with respect to fluid management
Definition
Dry weight
Term
What diruetic is notriously poorly bioavailable/eratic?
Definition
Lasix, if having a hard time controling dry wt and keep changing lasix dose switch to torsemide
Term
HF pt are more sensitive to hypokalemia, what treatment might be used to offset this?
Definition
Spironolactone
ACE/ARB
Term
In two days after changing lasix dose you take a potassium showing no change in potassium what do you do?
Definition
Wait 3 more days, it takes up to 5 days to see a change when messing with lasix
Term
What systolic dysfunxn pt should be on an ACE?
Definition
EVERYONE (except, preg, angioadema, bilateral renal artery stenosis)
Term
Which ACE is used the most in HF and why?
Definition

Lisinopril

 

Once daily!

Term
What sort of starting dose do you use for lisinopril?
Definition
2.5 or 5 if high BP and good renal go 10 start low if K is high and/or poor renal etc
Term
When switching ace inhibitors you need to look at the min dose and max dose and use a 7:1 ratio and look for the closest one to what your current dose is
Definition
Term
What is normal K range?
Definition
3.7 to 5.2
Term
CrCl of 2.5-3 is a relative contraindication, why?
Definition
Because practically people don't accept it, but in literature there is no CrCl that is to high for ACE in HF
Term
Where is the most benefit w/ ACE?
Definition
Low end, so some is much better than none, but push as High as you can if not limited
Term
What might you do for pts on loops but not responding adequately?
Definition
At a thiazide- prevents Na reabsorption at the tubule
Term
When should you not use a thiazide?
Definition

CrCl<30

 

Then you can use a thiazide-like drug Metalazone

Term
What is a thiazide like drug that doesn't require filtration?
Definition
Metolazone
Term
What are the cons of ACE in HF?
Definition
Renal concerns
Hyperkalemia
Hypotension
Term
When are the side effects of an ACE most prominent?
Definition
dehydration
Term
Using BOTH ACE and ABR will improve what?
Definition
Hospitalization, no effect at all on survival
Term
What are the types of HF?
Definition

1) CAD (Ischemic)

2) hypertension/inc workload causes hardening/thickening Dilated cardiomyopathy

Term
Neurohormonal HF is caused by
Definition
Sympathetic nervous system (SNS) and rennin angiotensin-aldosterone system (RAAS)
Term
RAAS system makes AT2 which is a potent vasoconstrictor that inc intraglomerular pressure how does this affect HF?
Definition

AT2 causes aldosterone release which causes Edema (Na/H2O retention) which worsens ventricular filling

As well as increases BP 

Term
What drugs can be used to combat the RAAS system's negative effects in HF?
Definition
Spironolactone
Epleronone
(Aldosterone antagonists)
Term
How is spironolactone dosed in HF?
Definition
1qd (not qid like diuretic)
Term
What might you treat a pt w/ to combat SNS contributions to HF?
Definition
BB, SNS tries to increase HR to compensate for dec in fxn, but ends up worsening HF at some point, slow down HR, increase filling
Term
What negative effects can the neurohormonal response to HF have?
Definition
Inc preload
Vasoconstriciton
Tachycardia
Ventericular hypertrophy/remodeling
Term
What is the difference in Systolic and diastolic dysfxn
Definition
EF
Diastolic HF EF >40
Systolic HF EF <40
Term
Why does renal insuficency worsen HF? (Cardio renal model)
Definition
Lose CO to kidney the kidney changes by increasing AT2 to compensate the kidney which causes an increase in aldosterone and increase in edema etc
Term
What treatment targets the cardio-renal model?
Definition
Lasix to dry up edema and ACE to prevent glomerular changes
Term
What treatment targets the cardio-renal model?
Definition
Lasix to dry up edema and ACE to prevent glomerular changes
Term
When you put a HF pt on lasix and ACE you can expect to see what lab changes?
Definition
BUN and Cr rise, decrease in fluid volume and decrease in glomerular pressure so decreaed excretion
Term
What are some exacerbating factors for HF?
Definition
ischemia, arrhythmia, endocarditis, myocarditis, pulmonary embolus, uncontrolled HTN, valvular disorder, anemia, infxn, pregnancy, worsened renal fxn, cocain, alcohol, amphetamines, sympathomimetics
Term
What drugs might exacterbate HF?
Definition
NSAIDs, COX-2, steroids, lithium, BB, CCB, antiarrythmics, alcohol, thiazolidineiones (TZD)
Term
What negative inotropes might exacerbate HF?
Definition
Flecainide, disopyromide, CCB, itraconazole, terbiafine
Term
What cadriotoxic drugs much exacerbate HF?
Definition
doxirubicin, daunomycin, cyclophasphamide
Term
What drugs might effect Na/Water retention and exacerbate HF?
Definition
NSAID, COX2, androgens, estrogens, steroids, salicylates, NA drugs, rosiglitazone(avandia)/pioglitazone (TZD)
Term
What CCB might exacerbate HF?
Definition
Non-dihydropyradines (Dilt, Verap)
Term
What signs and sx might you see that are unique/indicative of HF?
Definition
JVD, HJR (hepato-jugular reflex), tachycardia, cough, BNP, S3 gallop, enlarged liver, Railes(sp)
Term
What dietary changes might cause decompensation of HF?
Definition
Increased Na intake (wolfies synd)
Term
What do half of HF pts die from?
Definition
Arrythmia
Term
NYHA classification (N/A, 1, 2, 3, 4)
Definition
N/A: high risk, no changes
I: no limits to activity
II: slight limitation (angina, dyspnea)
III: marked limitation less than ordinary exercise
IV: inability of physical activity w/o discomfort
Term
What are our objectives in HF?
Definition
Early: RF management
Early-med: pharmacologic Tx slow prog
Late-med: additional Tx dec morbidity
Late: QOL
Term
What might be a serious consideration with lasix/loops?
Definition
Hypokalemia, which HF pt are particularly sensative too
Term
How many days does it take K, BUN and Cr to respond to a lasix dose change?
Definition
5-7days
Term
What is the role of hydralazine in HF?
Definition
reduces afterload through ARTERIAL relaxtation and a rdxn in nitrate tolerance
Term
What is the role of Isosorbid dinitrate in HF?
Definition
Rdxn in preload by venous vasodilation
Term
What is the role of Dig in HF?
Definition
positive inotropic effects used in short term for decompensated HF, or AFib.
Term
What are the contraindications of ACE important to HF?
Definition
Pregnancy
Angioedema
Bilateral renal stenosis
Term
Which ARBs have best data for HF?
Definition
Valsartan or candisartan
Term
Which two beta blockers have the strongest data in HF?
Definition
Metoprolol and carvedolol
Term
How are BB dosed in HF?
Definition
Highest tolerated dose or Max dose which ever comes first
Term
When would you consider giving more than 25mg Carvedolol BID?
Definition
Pt wt>85kg(170lb) give 50mg BID
Term
How do you know Pt has to much beta blocker?
Definition
JVD/edema, SOB, BP/Pulse very low
Term
How long does it take to get past the phase in which a BB might make HF worse?
Definition
3mo
Term
What do you do to treat hypotension and SOB in a properly medicated HF pt?
Definition
Cut back on BB
Term
If you are titrating onto a BB and you get SOB, Edema problems etc what do you do?
Definition
lower/hold BB or ad diuretic
Term
Every HF pt needs to be on what two drugs with very few exceptions?
Definition
BB and ACE
Term
When can you NOT give spironolactone and what should you do?
Definition
CrCl <2.5 change to epleronone
Term
What is the downside of using isosorbid or hydralazine?
Definition
Has no effect on neurohormonal exacerbation
Term
When do you use Isosorbid and/or hydralazine in HF?
Definition

When CrCl is not good. Good for people who have lost the ability to be on an ACE

 

Contradicts himself about the ACE....

Term
What population responds better to nitrates than most?
Definition
African americans
Term
What is one of the main problems with isosrbid and hydralazine?
Definition
Compliance, two pills QID has poor adherence
Term
What is an odd side effect of hydralazine that is dose dependant?
Definition
Lupus effect (seen w/ 400mg or more qd)
Term
What two things does Dig do?
Definition
NaK ATPase pump inhibitor/blocker, increases intracellular Na causing an increase in CO
Stimulates vaugal tone thus decreaseing HR and AV conduction
Term
What type of pt would not be able to get heartblocked by Dig?
Definition
heart transplant because no vaugal inervation
Term
What dosing do we use for dig?
Definition
0.125 almost ALWAY gets the job done, better to under dose than over dose
Term
How is dig excreted? what signigance?
Definition
Renally, poor renal fxn = high serum concentration
Term
Why might you consider anticoagulation in HF pt?
Definition
Only if Pt needs it for another reason, no benefit in HF
Term
Diastolic dysfxn you have to slow the HR down do ensure proper filling
Definition
Term
What would a HF bnp be?
Definition
100 or greater
Term
What drugs do we use to help with preload in HF?
Definition
diuretics, venous vasodilators (NTG)
Term
What positive inotropes do you use in HF?
Definition
dig, dobutamin, milrinone
Term
What drugs do you use to help with afterload in acute HF?
Definition
Arterial vasodilators (nitroprusside) high dose IV NTG
Term
Positive innotropes should only be used in AHF no CHF
Definition
These are like dobutamine and milronone
Term
When is dobutamine useless/not work
Definition
when a pt is on BB it fxns on the beta receptor
Term
Which drug is useful even in Pt on beta blocker to work as a postive ionotrope?
Definition
Milronone- it breaks down cyclic AMP (phosphodiesterase inhibitor)
Term
Can dobutamine and mlironone be used together?
Definition
Yes, they work on two seperate pathways
Term
What is normal cardiovascular index?
Definition
2.8-4.2
Term
What is normal SVR?
Definition
900-1400
Term
what is normal pulmonary artery occlusion pressure (wedge pressure)?
Definition
less than 12
Term
what is normal pulmonary artery occlusion pressure (wedge pressure)?
Definition
less than 12
Term
how do you measure SVR, wedge pressure and CI?
Definition
right heart cath
Term
What are the downside of ACE in HF?
Definition
Declining renal fxn
Hyperkalemia
Hypotension
Term
Very important to monitor K in pts
Definition
Term
What is dosing for spironolactone
Definition
Almost always 25mg qd
Term
What drug is used for prophylaxis in sickle cell pt?
Definition
PenV (prevention of strep pneumo) qd or shot in the hip once monthly
Term
Patients with SCD should be on folic acid ESP when on hydroxyurea
Definition
Term
When would you not use hydroxyurea in SCD pt?
Definition
PREGNANCY/sexually active
Term
SCD infxn prophylaxis
Definition
Pneumococcal vaccine (PCV7 and PPV23)
Penicillin prophylaxis for children <5yo
Annual flue vaccine
Term
SCD induction of fetal hemoglobin (HgF)drug therapy
Definition
Hydroxyurea is primary agent
also butyrides, decitabin, clotrimazole and erythropeitin
Term
Chronic tranfusion therapy of SCD pt
Definition
Indicated for stroke prevention in pediatrics
may reduce pain crisis
Term
SCD pain crisis treatment
Definition
Hydration and analgesics
Term
SCD fever and infxn treatment
Definition
broad spec AB
Term
What are some factors that affect cell sickling?
Definition
rapid temp change
Smoking
Alcohol
Hydration
Term
When does RBC tend to sickle the most?
Definition
Poor oxygen
Term
Infxn treatment in SCD
Definition
Broad spec AB (cefotaxime, ceftriazone, clindamycin(alt to cephalosporin), VANC for resistant staphy and pneumo infxn
Term
How do you treat acute chest synd in SCD?
Definition
broad spec AB, bronchodilator (airway), fluids, pain management, transfusion
Term
Stroke treatment in SCD pt
Definition
apap/buprofen for fever, exchange transfusion, chronic transfusion therapy
Term
SCT (sickle cell trait) is carrier usually asymptomatic
Definition
Term
Monitor hydroxyurea in SCD pt for what?
Definition
CBC (ptlt)
SrCr
BUN
Term
How high must a fever be in a SCD pt to consider AB treatment?
Definition
101.3
Term
What is a white clot
Definition
Arteriole clot, primarily formed by clumping platelets
Term
What is a red clot?
Definition
veinous clots caused by coagulated blood cells
Term
What is the loading dose of warfarin?
Definition
IT SHOULDN"T BE LOADING DOSED!
Term
What drug inhibits factor X?
Definition
Fondoparinux
Term
How long does it take warfarin to be effective?
Definition
atleast 3 days
Term
How dose binge drinking affect INR?
Definition
Increases INR
Term
How does chronic alcohol consumption affect INR?
Definition
Decreases INR
Term
What DTI doesn't requre renal adjustment?
Definition
Argatroban
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