Afterload reduction is achieved by what?
Cardiac 1

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University
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Medium
Tim Frank
Used 13+ times
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18 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Elevating SVR/ PVR
Vasodilators
Semilunar valve stenosis
Hypovolemia
Answer explanation
Afterload is the pressure the heart must overcome to eject blood out of the ventricle. Increased SVR/PVR, BP, stenosis of pulmonic and aortic valve, increase afterload.
Hypovolemia decreases preload
Anything that decreases systemic BP will decrease afterload
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
This dysrhythmia is usually associated with hypomagnesemia
Sinus arrhythmia
Premature atrial beats
Ventricular tachycardia
Torsade's de Pointes
Answer explanation
Torsade's de Pointe
"twisting of the points"
Hypomagnesemia is one cause,
Others include:
Prolonged QT interval
Heart disease
Always treated with magnesium
Can lead to v-tach/ v-fib sudden cardiac death
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Beta blockers can mask which condition?
Hypoglycemia
Hypercalcemia
Hypokalemia
Hypernatremia
Answer explanation
Tachycardia and tremor are common signs of hypoglycemia. Beta blockers block norepinephrine which is responsible for these reactions.
Sweating is still present
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Amiodarone and lidocaine infusions are used for which dysrhythmias?
A-Flutter and
A-Fib
PVC's and PAC's
V-Tach and V-Fib
PEA and Asystole
Answer explanation
Lidocaine and amiodarone are antidysrhythmic drugs used to treat ventricular dysrhythmias
Amiodarone can be used for a-fib/ flutter
Beta blockers are first choice for PVC and symptomatic PAC treatment
PEA and asystole require epinephrine
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Why is dual anti-platelet therapy recommended after coronary artery stents?
Decreases workload of the heart
Decreases inflammation of the artery
Decreases preload of the heart
Decreases risk of recurrent MI
Answer explanation
Dual antiplatelet therapy (DAPT) prevents stent thrombosis and ischemic events that would lead to a MI.
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Which blood pressure is considered prehypertensive?
118/78
130/90
126/82
134/92
Answer explanation
Prehypertension is systolic less than 140 or greater than 120
Diastolic less than 90
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Which risk factor is not modifiable?
Age
Activity level
Diet
Stress level
Answer explanation
Non-modifiable risk factors are things a person cannot change such as:
age
genetics
race
sex
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