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HTN 2
HTN questions
36
Nursing
Graduate
07/30/2011

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Cards

Term
CO is normally _-_ L/min
Definition
4-7
Term
Stroke volume equation
Definition
CO= HR x SV
Term
3 factors that affect stroke volume
Definition
Preload (liquid: amt of blood ready to go into the aorta)
Afterload (pressure)
Contractility (How well the heart works)
Term
Inotropic drugs
Definition
effectcontractility of the heart
Term
Negative inotropic drugs
Definition
decreases contractility of the heart (lopressor, atropolol)

angina
Term
Positive inotropic meds
Definition
increase contractility of the heart

(digoxin)
Term
Catecholamines
Definition
control the sympathetic branch (blood vessels)
Term
When alpha & beta receptors are activated _______ occurs
Definition
constriction
Term
Beta 1 cells are located in the ____ and ___
Definition
heart and kidneys
Term
When beta 1 receptors in the kidneys are stimulated, there is __________
Definition
increase in renin secretion
Term
Beta 2 blockers are located in the _____ and _____. When they are stimulated, ______ occurs. For this reason _______ beta blockers are better for ______/_____ (as well as _______)
Definition
Beta 2 blockers are in hte lungs and arterioles. When they are stimulated broncho/vasodilation occurs. For this reason, cardioselective beta bockers (atenolol, Tenormin and metoprolol, Lopressor) are better for asthma/COPD (as well as diabetes because non-selective may mask symptoms of hyper glycemia)
Term
Normal B/P is ______.
Prehypertension is SBP ____-____ or DBP ___-___
Stage 1 hypertension is SBP ____-____ or DBP ___-___
Stage 2 hypertension is SBP ____-____ or DBP ___-___
Definition
<120/80
prehypertension SBP 121-139 or DBP 81-89
stage 1 SBP 140-159 or DBP 90-99
Stage 2 SBP >159 or SBP >99

But it's important to identify presence of target organ disease & additional risk factors. With risk factors, >130/80 is hypertension
Term
Hypertensive urgency
Definition
Rise in BP (up to 180/110) WITHOUT acute end-organ damage
Term
Hypertensive emergency
Definition
sudden rise in bp (220/140) WITH acute end-organ damage
Term
Malignant HTN
Definition
DBP >120
Term
Most common cause of secondary HTN
Definition
Renal Parenchymal disease
Term
OTC meds that may cause secondary HTN
Definition
NSAIDS (ibprofen, naproxin), Decongestants (pseudoephedrine; Sudafed), Migrane H/A meds
Term
One secondary health problem that is a modifiable risk factor for secondary HTN is ______
Definition
diabetes mellitus
Term
Someone taking Digoxin and a diuretic sees a yellow aura
Definition
Digoxin toxicity
Term
Never combine Lithium and _____ diuretics because of decreased ______ ______ and ____ toxicity
Definition
Thiazides

Decreased renal function, lithium toxicity
Term
Beta 1 blockers prevent _______
Definition
RAAS system
Term
RAAS system
Definition
Renin angiotensin aldosterone system

When blood volume is low, kidneys secrete renin, renin stimulates angiotensin to form angiotensin I, angiotensin converting enzyme convertes angiotensin I to angiotensin II. Angiotensin II causes blood vessels to constrict, causing increase in BP. Angiotensin II also stimulates secretion of aldosterone from the adrenal cortex, aldosterone causes the kidneys to increase the re-absorption of salt and water, also increasing bp.
Term
Typical CHF "cocktail"
Definition
ACE
Beta
Aspirin
Term
Angiotensin inhibitors
Definition
Drugs that prevent RAAS

1)ACE inhibitors (angiotensin-converting enzyme inhibitors) end in "-pril"
Lisinopril, enalapril, captopril, benazepril
2) Angiotensin II receptor blockers (ARBs) end in "-sartan"
Losartan, Valsartan
3) Renin blockers only ONE: Aliskirin (Tekturna)
Term
Caution when using ACE inhibitors, ARBs, and Renin blockers with _______/_____. Also monitor for side effects like ____, ____, ___ __ ___, and serios side effects like ________
Definition
ASA/NSAIDS

Cough, rash, loss of taste

Serios side effect: angioedema
Term
Vasodilators are used in ______ ____ _____
Definition
Severe hypertension/crisis

Hydralazine (increase hair growth)

Nitroprusside (er mostly)
Term
NEVER give ________ to pregnant patients. Examples are ______, ______, ______, ________. ________ are the best option for pregnant women like ________ (______) and ________ (_______)
Definition
Never give Ace inhibitors to pregnant women. ACEs are: Lisinopril, enalapril, captopril, benazepril .

Alpha 2 receptor agonists: clonidine (catapres) or Methyldopa (Aldomet)
Term
Care for hypertensive crisis
Definition
Lay supine, give Labetalol IV ASAP
Term
African americans produce less _____ and are not as receptive to _____ or ______, so they should not be used as _____. ________ with ______ is the best choice. The standard dose is ___, more can cause kidney damage.
Definition
Produce less renin. Aren't as receptive to ACEs and ARBs so they shouldn't be used as monotherapy. Calcium channel blockers with thiazide diuretics are the best choice; 25mg is standard dose, more can cause kidney damage.
Term
Using ACE inhibitors in diabetics _______ _____ and ____ ______. This is _____ in ______! Instead of beta blockers, ________ ___ ___ should be used, but avoid ____ _______ ______ because they can _____ ______.
Definition
ACEs decrease proteinuria and slow nephropathy in diabetics, this is not true in non-diabetics!!

Calcium cahnnel blockers should be used instead of beta blockers and we should avoid non-selective beta 2 blockers because they can mask hyperglycemia.
Term
First choice for elderly HTN-- can also use ______ _____ _____
Definition
Thiazide diuretics
Calcium channel blockers
Term
Elderly produce less ____, so _____ and _____ are less effective. They need _____ doses, but slower metabolism. ____ ____ ___ __!
Definition
Produce less renin, more resistant to ACE and ARBs. Need higher doses, but slower metabolism. Start low, go slow!
Term
Reducing SBP <120 in elderly can lead to _____ _____ _____
Definition
inadequate cerebral perfusion
Term
_____ ______ are an option for pregnant women, but they must be ____ before delivery because the cause _____ _____.
Definition
Beta-blockers
Must be d/c'd before delivery because they cause fetal bradycardia
Term
Good options for pregnant women
Definition
Alpha-receptor antagonist (central acting) Aldomet (Methyldopa)
Vasodilators: apresoline (hydralazine)
Term
4 drugs that should NEVER be given to a pregnant woman
Definition
Captopril, enalapril, lisinopril, benazepril (ACEs)
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