CRAT TEST FINAL EXAM AND PRACTICE EXAM QUESTIONS
2025 WITH DETAILED VERIFIED ANSWERS (100% CORRECT
ANSWERS) /ALREADY GRADED A+
Question 1
Without possession of a release form, PHI (Protected Health Information) may
be shared with a patient's ______ without violating HIPAA regulations.
A. Children
B. Husband/Wife
C. Doctor
D. Verbally reported power of a attorney
E. Friend
Correct Answer: C) Doctor
Rationale: PHI can be shared with other healthcare providers
(doctors) involved in the patient's care for treatment purposes
without explicit patient consent, as this falls under "treatment,
payment, and healthcare operations" permitted by HIPAA.
Question 2
When an ECG is properly grounded, it reduces the risk of?
A. Electrical shock
B. Paper malfunction
C. Faulty results
D. 60 cycle electrical interference
E. Lead detachment
Correct Answer: D) 60 cycle electrical interference
Rationale: Proper grounding helps dissipate stray alternating current
,(AC) interference, often from electrical wiring and equipment (60 Hz
in North America), which can cause a wavy baseline on the ECG
tracing.
Question 3
Which ECG waveform represents ventricular repolarization?
A. R wave
B. F wave
C. Q wave
D. T wave
E. P wave
Correct Answer: D) T wave
Rationale: The T wave represents the electrical recovery or
repolarization of the ventricles, as they relax and prepare for the
next contraction.
Question 4
On standard ECG graph paper, one large box on the horizontal (time) axis
represents?
A. 0.04 seconds
B. 0.10 seconds
C. 0.20 seconds
D. 0.25 seconds
E. 0.08 seconds
Correct Answer: C) 0.20 seconds
, Rationale: On standard ECG paper, at a paper speed of 25 mm/sec,
one large box (5 small boxes) on the horizontal axis represents 0.20
seconds (200 milliseconds).
Question 5
Which selection accurately describes how to measure a QRS complex?
A. Measure from the beginning of the P wave to the beginning of the R wave.
B. Measure from the beginning of the Q wave to the end of the S wave.
C. Measure from the peak of the R wave to the beginning of the T wave.
D. Measure from the beginning of the Q wave to the end of the T wave.
E. Measure from the beginning of the R wave to the end of the S wave.
Correct Answer: B) measure from the beginning of q wave to the end
of the s wave
Rationale: The QRS complex represents ventricular depolarization. Its
duration is measured from the initial downward deflection (Q wave)
to the end of the final upward or downward deflection (S wave).
Question 6
A P wave represents depolarization of the:
A. Ventricles
B. Atria
C. AV node
D. Purkinje fibers
E. SA node
Correct Answer: B) atria
2025 WITH DETAILED VERIFIED ANSWERS (100% CORRECT
ANSWERS) /ALREADY GRADED A+
Question 1
Without possession of a release form, PHI (Protected Health Information) may
be shared with a patient's ______ without violating HIPAA regulations.
A. Children
B. Husband/Wife
C. Doctor
D. Verbally reported power of a attorney
E. Friend
Correct Answer: C) Doctor
Rationale: PHI can be shared with other healthcare providers
(doctors) involved in the patient's care for treatment purposes
without explicit patient consent, as this falls under "treatment,
payment, and healthcare operations" permitted by HIPAA.
Question 2
When an ECG is properly grounded, it reduces the risk of?
A. Electrical shock
B. Paper malfunction
C. Faulty results
D. 60 cycle electrical interference
E. Lead detachment
Correct Answer: D) 60 cycle electrical interference
Rationale: Proper grounding helps dissipate stray alternating current
,(AC) interference, often from electrical wiring and equipment (60 Hz
in North America), which can cause a wavy baseline on the ECG
tracing.
Question 3
Which ECG waveform represents ventricular repolarization?
A. R wave
B. F wave
C. Q wave
D. T wave
E. P wave
Correct Answer: D) T wave
Rationale: The T wave represents the electrical recovery or
repolarization of the ventricles, as they relax and prepare for the
next contraction.
Question 4
On standard ECG graph paper, one large box on the horizontal (time) axis
represents?
A. 0.04 seconds
B. 0.10 seconds
C. 0.20 seconds
D. 0.25 seconds
E. 0.08 seconds
Correct Answer: C) 0.20 seconds
, Rationale: On standard ECG paper, at a paper speed of 25 mm/sec,
one large box (5 small boxes) on the horizontal axis represents 0.20
seconds (200 milliseconds).
Question 5
Which selection accurately describes how to measure a QRS complex?
A. Measure from the beginning of the P wave to the beginning of the R wave.
B. Measure from the beginning of the Q wave to the end of the S wave.
C. Measure from the peak of the R wave to the beginning of the T wave.
D. Measure from the beginning of the Q wave to the end of the T wave.
E. Measure from the beginning of the R wave to the end of the S wave.
Correct Answer: B) measure from the beginning of q wave to the end
of the s wave
Rationale: The QRS complex represents ventricular depolarization. Its
duration is measured from the initial downward deflection (Q wave)
to the end of the final upward or downward deflection (S wave).
Question 6
A P wave represents depolarization of the:
A. Ventricles
B. Atria
C. AV node
D. Purkinje fibers
E. SA node
Correct Answer: B) atria
