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Test 1 Basics
Preoperative Evaluation and Medication CH 2, 8, 9, 10, 11, 13, 14
73
Medical
Graduate
01/23/2015

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Cards

Term
How many ASA grades are there?
Definition
6
Term
A person with mild asthma would be an ASA of?
Definition
ASA 2
Term
What are the most common ASA classes you will work with
Definition
ASA 1, 2, 3, 4.
Term
A patient with renal failure on dialysis is an ASA?
Definition
3
Term
Class ? CHF is an ASA?
Definition
ASA 3
Term
If a person has comorbities that are a significant impact on dialy activity are ASA?
Definition
ASA 3
Term
what is the difference between ASA 3 and 4 on daily activity
Definition
ASA 3 have some signifant restrictions on daily living but ASA 4 have serious limitations.
Term
What is the difference between ASA 5 and 6?
Definition
ASA 5 patient will likely die in 24 hours with or wihtout surgery. ASA 6 patient is a brain dead organ donor.
Term
Whats a better MET score. 3 or 12?
Definition
12! Means you can run as fast paces for long distances
Term
MET assesses what?
Definition
Each MET is equivalent to your body being able to consume 3.5 mLO2/kg/min of body weight. The higher the MET score 1-12 the more likely someone can handle large amounts of metabolism without stress on their heart/lungs.
Term
what type of valve problems would make you want to cancel the case
Definition
severe AS or MV disease or stenosis
Term
What is a good MET score to go into a surgery
Definition
equal to or > 4 METS (Means your can rake leaves and walk up and down stairs
Term
define systolic dysfunction
Definition
decrease ejection fraction from abnormal contractility
Term
define diastolic dysfunction
Definition
increased filling pressures with abnormal relaxation but normal contractility and EF.
Term
+++ Accounts for half of all cases of heart failure
Definition
diastolic dysfunction
Term
What can cause diastolic dysfunction (one of many)
Definition
HTN
Term
If you see this on ECG you should suspect a degree of cardiac diastolic dysfunction
Definition
left ventricle hypertrophy. Ventricle has to get bigger to compensate for poor filling from dysfunctioning diastole
Term
50-75% of systolic dysfunction heart failure stems from
Definition
ischemic heart disease
Term
What type of murmur is always pathological and requires evaluation
Definition
DIASTOLIC
Term
Is regurgitant heart disease tolerated better perioperatively or is stenotic disease?
Definition
Regurgitant heart disease is better tolerated
Term
does aortic scelrosis casue hemodynamic compromise
Definition
NOOOO. May sound the same as AS but not dangerous like AS
Term
What varieties of murmurs may warrant getting an ECHO
Definition
1. Diastolic murmurs
2. continuous murmurs
3. Late systolic murmurs
4. Grade 3 or louder systolic murmurs
Term
a preoperative BP < ?/? is not associate with perioperative cardiac risks
Definition
<180/110
Term
Is asthma a predictor of difficult perioperative management
Definition
NO. IF ASTHMA IS WELL CONTROLLED no risk. But if not well controlled or wheezy at induction that is a risk.
Term
what can you do preoperatively to decrease risks associated with bad asthma or COPD patient
Definition
give albuterol or a inhaled steroid preoperatively. Shown to decrease risks!!
Term
Do arterial gases, CXRs or pulmonary function tests offer good indcators of potential postop pulmonary complications?
Definition
NOOOOOOOOOOOOO. The only to help with prevent post op pulmonary complications is to treat major issues like HF, COPD, preop.
Term
What is STOP-BANG stand for?
Definition
STOP-BANG
1. Snoring
2. Tired
3. Observed apnea
4. Pressure HIGH BP
5. BMI >35
6. Age >50
7. Neck circumference > 40cm
8. Male Yes is bad.
Term
STOP BANG IS USED FOR? What is a + indicator
Definition
Used to assess for OSA. Score yes to more than 3 items and you have OSA.
Term
You should only order a preoperative test if?
Definition
if the results will impact the decision to proceed with the planned procedure or alter the plans.
Term
random EKG preop are not indicated unless patient has one of hte following
Definition
1. ischemic heart disease
2. HF
3. Cerebrovascular disease
4. DM
5. Renal insufficency
6. Some vascular procedures
Term
ASA can effect bleeding times by a factor of? But either way surgeons could not tell the difference in a double blind study. The only procedures you don't want patients on ASA are
Definition
1. increase bleeding by 1.5 factor
2. Don't give if patient undergoing intracranial or transurethral resections of the prostate.
Term
ASA can be discontinued if taken only for primary or secondary prevention?
Definition
Primary!! Which is prevention not for actual disease presence
Term
can patients on ASA safely get neuraxial anesthesia?
Definition
YES. Endorsed by american society of regional anesthesia.
Term
LMWH and preop...
Definition
Stop LMWH 12-24 hours before procedures. Increase risk of bleeding in neuraxial blocks
Term
Warfarin before surgery.. what to do
Definition
If pt has an INR 2-3 and is stable on warfarin then you can safely hold 5 doses prior to surgery and that should be effective. Recheck 2 days out. But if their INR >3 you may need to hold more doses prior to surgery.
Term
Bridging people from warfarin to heparin IV is reserved for?
Definition
people with acute thrombotic issues 1 month or sooner or other acute or risk diseases
Term
patients with DES of what duration need to continue their plavix?
Definition
if DES in <12 months need to continue plavix!
Term
NSAIDS should be continued day of or stopped?
Definition
Stop 48 hours prior to surgery
Term
patients with insulin pumps should do what on surgery day
Definition
continue basal rate but stop all short acting insulin
Term
metformin considerations preop and postop
Definition
Can give day of surgery will not cause hyopglymcemia is fasting patient. But do not restart metformin for several days since it is assocaite with lactic acidosis and needs liver for metabolism. Need to first make sure there is no acidosis from the surgery itself.
Term
what is the normal adrenal ouput of cortisol which is equivalent to how much predinsone?
Definition
30mg cortisol by body equals 5-7.5 mg of predinsone
Term
what dose of steroids such as predisone can cause hypothalamic-pituitary axis to become suppress and therefore these patients may need stress dose steroids to compensate for surgery when patient HPA is suppressed from chronic steroids
Definition
a pt on more than 20mg/day of predinson for more than 3 weeks can cause adrenal insufficiency that lasts up to one year after the cessation of the steroids.
Term
MAOI and surgery..what to know?
Definition
MAOI have long half life of 3 weeks. If you discontinue them three weeks in advance you place patient at high risk of suicide and depression. So just continue MAOI and tailor anesthesia plan for this.
Term
patients can have clear liquids up to how many hours prior to surgery
Definition
2 hours if no other risk factors
Term
Conditions that increase risk of aspiration
Definition
1. delayed gastric emptying
2. incompetent LES w/reflux
3. hiatal hernia
4. DM
5. gastric motility disorder
6. intra-abdominal masses
7 bowel obstruction
Term
Describe physiology of diastolic dysfunction and what causes it
Definition

Diastolic dysfunction occurs when your left ventricle is stiff / possible from hypertrophy and can no longer relax as easily during distole. As a result there is decrease compliance and when blood passively enters the ventricle it meets higher resistance. Therefore there is more pressure during diastole, hence why we call this increase filling pressures. Overall the period known as diastole is in dysfunction becasue the heart cannot relax normally and allow blood to passively flow normally. 

 

Diastolic dysfuction is normally caused by disease that force the left ventricle to get bigger which eventually leads to a dysfunction in diastole. The LV gets bigger when theres incrase Afterload from stenotic valves, or HTN. 

Term
akinesia definition
Definition
skeletal muscle relaxation and loss of motor reflexes.
Term
at what stage of anesthesia do you loose your eye lash reflex
Definition
Stage III
Term
at what stage of anesthesia do you loose your swallow reflex
Definition
Stage II
Term
What stage of anesthesia do you loose your eyelid reflex
Definition
Stage III
Term
What plane of stage III, plane 3 anesthesia do you begin to have intercostal muscle paralysis. BUT NOT COMPLETE.
Definition

Plane 3.

- Complete occurs in stage III, plane 4. Complete intercostal paralysis results in apnea. 

Term
what plane of Stage III do we want? What Sx should we look for
Definition
Stage III Plane III is ideal. Here we have pupil dilation and loss of pupil reflex to light. **pupils go from dilation during stage II to constriction in the first phase of stage III. And then back into a dilation phase.
Term
Somebodies eye begin to lacriminate what stage are you in
Definition
Stage III Plane II
Term
Why should an epidural not give a spinal headache?
Definition
They are in the epidural space and never pierce the dura which is associated with "spinal headaches". But if you get such a headache may be an indication you are in the WRONG SPACE.
Term
what considerations should you have for people with a bare metal stent
Definition
If bare metal stent <1 month then they have to take plavix and ASA.
Term
what findings indicate you entered plane 4 of Stage III of inhaled aneshtesia ??????
Definition
Not good. Risky place to be. You will have apnea since at this plane you have COMPLETE intercostal muscular paralysis.
Term
a BIER block is good for how long?
Definition
30-90 minutes
Term
why would you consider d/c preop cox2 inhibitors
Definition
if patient at risk for bone not healing.
Term
when should you consider stopping viagro preop
Definition
24 hours preop
Term
what are the different doses of hydrocortisone you should give if a patient is at risk for depressed HPA hypothalamus - pituitary axis
Definition
25mg Hydrocortison for minor
50-75 mg hydrocortison for moderate surgeries
100mg-150 mg hydrocortisone for major.
Term
what is dolestron and how much do you give
Definition
AKA anzemet is a serotonin selective blocker. The dose is 12.5 (equivalent to 4mg zofran). It lasts longer than zofran but overall is the same.
Term
where is the vomiting center located?
Definition
medulla
Term
What is a normal functional residual capacity of an adult that you are attempting to fill with oxygen? How do you get the pt to breath to achieve the best preop intubation O2 capacity
Definition
2500mL of 21% oxygen. Give 100% of O2 with eight vital capcity breaths. Allows you to have a larger increase in margin of safety.
Term
Why do you give an opioid prior to intubation
Definition
to blunt the SNS HTN/HR response to direct laryngoscopy and intubation
Term
Time to onset of paralysis after sux
Definition
45-120 seconds
Term
Why might sevo be indicated for induction over other induction methods?
Definition
It does not have side effects of salivation and it preserves spontaneous breathing. Once induction parameters are met, give your paralytic and then intubate
Term
Does opioids or benzos cause apnea
Definition
OPIOIDS.. so be careful.
Term
what dose of sevo would you give for induction and how long will it take
Definition
8% SEVO. 1 minute onset.
Term
what are the four main objectives of maintenance of anesthesia
Definition
1. amnesia
2. analgesia
3. skeletal muscle relaxation
4. control of SNS to noxious stimulation
Term
what are three types of neuraxial regional anesthetic
Definition
1. spinal
2. epidural
3. caudal
Term
why is spinal better than epidural? What are the disadvantages of spinals
Definition
Advantage of spinal:
1. takes less time to perform
2. produces more rapid onset and better quality of effect
3. is associated with less pain during surgery

Disadvantages:
1. postspinal headache
2. risks of intrathecal in arachnoid space.
Term
mortality rate of anesthesia is?
Definition
1 in 250,000
Term
if a person is worried about anesthesia what can they do prior to surgery to improve their chances of having limited to no complications?
Definition
1. stop smoking
2. loose weight
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