Critical Care Registered Nurse (CCRN): Role, Requirements & Career Guide

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CRITICAL CARE REGISTERED NURSE - CCRN V1 & V2

EXAMS (LATEST UPDATES STUDY BUNDLE

PACKAGE WITH SOLUTIONS) QUESTIONS AND

ANSWERS | GRADE A | 100% CORRECT (VERIFIED

SOLUTIONS)

RV wall .....ANSWER.....Thin and low pressured

What does heart failure look like .....ANSWER.....Dilated

chamber and weak pump

Treatment for right ventricular failure .....ANSWER.....IV fluids;

will not cause pulmonary edema since it's on the right side

LV failure with hypervolemia and pulmonary edema is managed

with: .....ANSWER.....(1) Loop diuretics if kidney function is

adequate to pee

Inferior wall MI cause what dysrhthmia

.....ANSWER.....Bradycardia and first degree heart block

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Left sided infarction most common dyrhythmias

.....ANSWER.....Vtach vfib

Small vessels that are not main vessels in heart are

.....ANSWER.....Arterioles and have a pressure of 10mmhg. These

feed the subendocarium

Hypotension an tachycardia can cause ischemia

.....ANSWER.....Due to the demand of the heart causing ischemia.

Coronary artery perfusion pressure .....ANSWER.....Diastolic BP -

PAWP

60 to 80 mmHg

Low CAPP .....ANSWER.....Causes low perfusion to the heart

Determinants of ventricular function .....ANSWER.....• Supply (of

oxygen) must equal supply (of oxygen)

- The heart utilizes approximately 85% of available 02 at rest

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- When the myocardium requires more O, for proper functioning,

the coronary arteries dilate in response to increased demand

When the demand is not met, it causes angina. Patient takes nitro

to cause dilation for more oxygen.

Cardiac output equation .....ANSWER.....heart rate x stroke

volume

stroke volume factors .....ANSWER.....preload, contractility,

afterload

Normal cardiac output .....ANSWER.....5 L/min

Cardiac Index (CI) .....ANSWER.....a measure of the cardiac

output of a patient per square meter of body surface area.

Cardiac Index .....ANSWER.....amount of blood pumped out of

heart per minute per sq meter of body mass. normal ranges btwn

2.5 to 4.2 L/min/meter2

Bumex takes how long to work .....ANSWER.....1 hr

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Nitroglycerin .....ANSWER.....Reduces preload if kidneys are not

working for loop diuretics

Low cardiac output with high pre load .....ANSWER.....Give nitro

aortic stenosis .....ANSWER.....calcification of aortic valve cusps

that restricts forward flow of blood during systole

Causes LVH

TAVR (transcatheter aortic valve replacement)

.....ANSWER.....placement of a balloon-expandable aortic heart

valve into the body via a catheter

Meds to reduce after load .....ANSWER.....Ace inhibitors-can get

angio edema

ARB

Alpha antagonist-hydralazine, clonidine

Beta blockers-not first line for HTN

CCB's-smooth muscle relaxers