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CEPS Exam 2026–2027 | Cardiac Electrophysiology
Certification Practice Questions, Answers & Detailed
Rationales
THIS CEPS EXAM PREP RESOURCE INCLUDES
➢ CEPS certification exam review material
➢ Cardiac electrophysiology practice questions, where included
➢ Answer key and explanations, where provided
,1. According to Ohm's law, which equation correctly represents the
relationship between voltage, current, and resistance?
A) I = VR
B) V = IR
C) R = VI
D) V = I/R
Answer: B
Rationale: Ohm's law states that voltage (V) equals current (I)
multiplied by resistance (R). This fundamental equation is essential for
understanding electrical principles in EP procedures.
2. An EKG-monitored patient should be ______, and the monitor
chassis should be ______.
A) Grounded; ungrounded
B) Ungrounded; grounded
C) Grounded; grounded
D) Ungrounded; ungrounded
Answer: B
Rationale: The patient should be ungrounded and the monitor chassis
should be grounded. If the patient were grounded, they would be able
to conduct leakage currents, which is dangerous. The chassis is
grounded to safely dissipate any fault currents away from the patient.
,3. Convert 154 lbs to kg.
A) 60 kg
B) 70 kg
C) 80 kg
D) 90 kg
Answer: B
Rationale: Using the conversion 2.2 lb = 1 kg: 154 ÷ 2.2 = 70 kg.
4. Convert 98.6°F to Celsius.
A) 32°C
B) 37°C
C) 40°C
D) 42°C
Answer: B
Rationale: C = 5/9(F - 32) = 5/9(98.6 - 32) = 5/9(66.6) = 37°C. This is
normal body temperature.
5. Convert 37°C to Fahrenheit.
A) 98.6°F
B) 99.5°F
C) 100.4°F
D) 97.8°F
, Answer: A
Rationale: F = 9/5C + 32 = 9/5(37) + 32 = 66.6 + 32 = 98.6°F.
6. Which three factors can change the automaticity of automatic cells?
A) Slope of phase 4, threshold potential, resting membrane potential
B) Slope of phase 0, threshold potential, action potential duration
C) Slope of phase 3, refractory period, resting membrane potential
D) Slope of phase 4, conduction velocity, threshold potential
Answer: A
Rationale: Automaticity is influenced by: (1) the slope of phase 4
depolarization (steeper slope = faster rate), (2) changes in threshold
potential (lower threshold = easier to reach = faster rate), and (3)
changes in resting membrane potential (more positive RMP = closer to
threshold = faster rate).
SECTION 2: ELECTROPHYSIOLOGY
7. Asystole is represented by which portion of the ECG?
A) PR interval
B) QT interval
C) QRS complex
D) No electrical activity visible
CEPS Exam 2026–2027 | Cardiac Electrophysiology
Certification Practice Questions, Answers & Detailed
Rationales
THIS CEPS EXAM PREP RESOURCE INCLUDES
➢ CEPS certification exam review material
➢ Cardiac electrophysiology practice questions, where included
➢ Answer key and explanations, where provided
,1. According to Ohm's law, which equation correctly represents the
relationship between voltage, current, and resistance?
A) I = VR
B) V = IR
C) R = VI
D) V = I/R
Answer: B
Rationale: Ohm's law states that voltage (V) equals current (I)
multiplied by resistance (R). This fundamental equation is essential for
understanding electrical principles in EP procedures.
2. An EKG-monitored patient should be ______, and the monitor
chassis should be ______.
A) Grounded; ungrounded
B) Ungrounded; grounded
C) Grounded; grounded
D) Ungrounded; ungrounded
Answer: B
Rationale: The patient should be ungrounded and the monitor chassis
should be grounded. If the patient were grounded, they would be able
to conduct leakage currents, which is dangerous. The chassis is
grounded to safely dissipate any fault currents away from the patient.
,3. Convert 154 lbs to kg.
A) 60 kg
B) 70 kg
C) 80 kg
D) 90 kg
Answer: B
Rationale: Using the conversion 2.2 lb = 1 kg: 154 ÷ 2.2 = 70 kg.
4. Convert 98.6°F to Celsius.
A) 32°C
B) 37°C
C) 40°C
D) 42°C
Answer: B
Rationale: C = 5/9(F - 32) = 5/9(98.6 - 32) = 5/9(66.6) = 37°C. This is
normal body temperature.
5. Convert 37°C to Fahrenheit.
A) 98.6°F
B) 99.5°F
C) 100.4°F
D) 97.8°F
, Answer: A
Rationale: F = 9/5C + 32 = 9/5(37) + 32 = 66.6 + 32 = 98.6°F.
6. Which three factors can change the automaticity of automatic cells?
A) Slope of phase 4, threshold potential, resting membrane potential
B) Slope of phase 0, threshold potential, action potential duration
C) Slope of phase 3, refractory period, resting membrane potential
D) Slope of phase 4, conduction velocity, threshold potential
Answer: A
Rationale: Automaticity is influenced by: (1) the slope of phase 4
depolarization (steeper slope = faster rate), (2) changes in threshold
potential (lower threshold = easier to reach = faster rate), and (3)
changes in resting membrane potential (more positive RMP = closer to
threshold = faster rate).
SECTION 2: ELECTROPHYSIOLOGY
7. Asystole is represented by which portion of the ECG?
A) PR interval
B) QT interval
C) QRS complex
D) No electrical activity visible
