CRAT TEST FINAL EXAM AND PRACTICE
EXAM QUESTIONS 2026 COMPLETE 80 EXAM
QUESTIONS WITH DETAILED VERIFIED
ANSWERS (100% CORRECT ANSWERS)
/ALREADY GRADED A+
The right ventricle - CORRECT ANSWER ✔✔- Pumps unoxygenated blood into
the pulmonary circulation
The _____ pericardium is the inner layer of the pericardium, which is also the
outer layer of the heart wall called the _____. - CORRECT ANSWER ✔✔-
Visceral, epicardium
When a ventricle relaxes in the normal heart, blood is prevented from flowing back
into it by - CORRECT ANSWER ✔✔- A semilunar valve
Which of the following conditions are potentially reversible? - CORRECT
ANSWER ✔✔- Myocardial ischemia and myocardial injury
Which of the following is the innermost layer of the heart that lines its inner
chambers, valves and is continuous with the innermost layers of the arteries, veins
and capillaries of the body? - CORRECT ANSWER ✔✔- Endocardium
Which of the following statements is CORRECT - CORRECT ANSWER ✔✔- A
branch of the right coronary artery supplies the right atrium and the right ventricle
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, The main electrolytes that affect cardiac function are - CORRECT ANSWER ✔✔-
Sodium, potassium, chloride, calcium
When an ECG machine is properly calibrated, a 1-millivolt (mV) electrical signal
will produce a deflection measuring exactly ______ tall. - CORRECT ANSWER
✔✔- Ten millimeters
The ST segment is measured from - CORRECT ANSWER ✔✔- The end of the
QRS to the beginning of the T wave
Where is the positive electrode placed in Lead III? - CORRECT ANSWER ✔✔-
Left leg/foot
Five large boxes, each consisting of five small boxes, represent _____ on ECG
paper. - CORRECT ANSWER ✔✔- One second
Another term for ventricular escape rhythm - CORRECT ANSWER ✔✔-
Idioventricular Rhythm (IVR)
Agonal rhythm - CORRECT ANSWER ✔✔- IVR with HR < 20 bpm
HR for IVR (ventricular escape rhythm) - CORRECT ANSWER ✔✔- 20-40 bpm
Signs and symptoms experienced during a tachydysrhythmia are usually primarily
related to: - CORRECT ANSWER ✔✔- Decreased ventricular filling time and
stroke volume
2|Page
EXAM QUESTIONS 2026 COMPLETE 80 EXAM
QUESTIONS WITH DETAILED VERIFIED
ANSWERS (100% CORRECT ANSWERS)
/ALREADY GRADED A+
The right ventricle - CORRECT ANSWER ✔✔- Pumps unoxygenated blood into
the pulmonary circulation
The _____ pericardium is the inner layer of the pericardium, which is also the
outer layer of the heart wall called the _____. - CORRECT ANSWER ✔✔-
Visceral, epicardium
When a ventricle relaxes in the normal heart, blood is prevented from flowing back
into it by - CORRECT ANSWER ✔✔- A semilunar valve
Which of the following conditions are potentially reversible? - CORRECT
ANSWER ✔✔- Myocardial ischemia and myocardial injury
Which of the following is the innermost layer of the heart that lines its inner
chambers, valves and is continuous with the innermost layers of the arteries, veins
and capillaries of the body? - CORRECT ANSWER ✔✔- Endocardium
Which of the following statements is CORRECT - CORRECT ANSWER ✔✔- A
branch of the right coronary artery supplies the right atrium and the right ventricle
1|Page
, The main electrolytes that affect cardiac function are - CORRECT ANSWER ✔✔-
Sodium, potassium, chloride, calcium
When an ECG machine is properly calibrated, a 1-millivolt (mV) electrical signal
will produce a deflection measuring exactly ______ tall. - CORRECT ANSWER
✔✔- Ten millimeters
The ST segment is measured from - CORRECT ANSWER ✔✔- The end of the
QRS to the beginning of the T wave
Where is the positive electrode placed in Lead III? - CORRECT ANSWER ✔✔-
Left leg/foot
Five large boxes, each consisting of five small boxes, represent _____ on ECG
paper. - CORRECT ANSWER ✔✔- One second
Another term for ventricular escape rhythm - CORRECT ANSWER ✔✔-
Idioventricular Rhythm (IVR)
Agonal rhythm - CORRECT ANSWER ✔✔- IVR with HR < 20 bpm
HR for IVR (ventricular escape rhythm) - CORRECT ANSWER ✔✔- 20-40 bpm
Signs and symptoms experienced during a tachydysrhythmia are usually primarily
related to: - CORRECT ANSWER ✔✔- Decreased ventricular filling time and
stroke volume
2|Page
