NHA CET COMPREHENSIVE EXAM 2025 QUESTIONS WITH
ANSWERS RATED A+
✔✔Are caused by diseases of the valves or other structural abnormalities - ✔✔
✔✔5th intercostal space, anterior axillary line - ✔✔V5
✔✔Second heart sound is due to the closure of the pulmonic valves - ✔✔S2
✔✔Left arm is positive and the other limbs are negative - ✔✔lead aVL
✔✔Ability of cardiac cells to receive electrical impulse and transmit stimulus to cardiac
cells - ✔✔conductivity
✔✔Autonomic Nervous Systemen (ANS) - ✔✔subdivided into the sympathetic and
parasympathetic; also influences heart
✔✔3 bipolar leads and 3 augmented leads. These leads record electrical potentials in
the frontal plane - ✔✔limb leads
✔✔4th intercostal space, left sternal border - ✔✔V2
✔✔Left arm is positive and the right arm is negative - ✔✔Lead I
✔✔5th intercostal space, midaxillary line - ✔✔V6
✔✔The normal P wave in standard, limb, and precordial leads does not exceed what? -
✔✔0.11s in duration or 2.5 mm in height.
✔✔The initial negative deflection produced by ventricular depolarization - ✔✔Q wave
✔✔The first positive deflection produced by ventricular depolarization - ✔✔R wave
✔✔1st negative deflection produced by ventricular depolarization, following R wave -
✔✔S wave
✔✔The deflection produced by ventricular repolarization - ✔✔T wave
✔✔Deflection seen following the T wave but preceding the next P wave - ✔✔U wave
✔✔Interval between 2 R waves - ✔✔R-R interval
✔✔line for the end of the P wave to the onset of the QRS complex - ✔✔PR segment
, ✔✔Point at which QRS complex ends and the ST segment begins - ✔✔J (RST)
Junction
✔✔Sweat, lotion on patient's skin or tension on the electrode can interfere with the
signal - ✔✔Wandering Baseline
✔✔Caused by electrical appliances or apparatus being used nearby while the tracing is
taken - ✔✔60-cycle Interference
✔✔Non-invasive diagnostic procedure to determine presence and severity of coronary
artery disease - ✔✔Stress Testing
✔✔Some indications for stress testing are: - ✔✔-Evaluation of chest pain in patient with
normal EKG.
-Evaluation of patient who has recently had a myocardial infarction.
-Diagnosis and treatment of arrhythmias.
✔✔What does the patient usually experience during Ischemia - ✔✔chest pain and/or
discomfort...... usually called Angina
✔✔The hallmark of infarction on EKG is what? - ✔✔Presence of abnormal Q waves
✔✔Enables evaluation of pt's heart rate, rhythm, QRST morphology and during usual
daily activities - ✔✔Ambulatory EKG monitoring
✔✔Sinus bradycardia PR interval - ✔✔0.12-0.20 seconds
✔✔This may result in varying QRS amplitude - ✔✔Artifacts: Battery depletion
✔✔Prompt treatment of hypoxemia may prevent what? - ✔✔cardiac arrest
✔✔For breathing spontaneously - ✔✔Mask and nasal canals can be used to administer
oxygen
✔✔Increases the force of cardiac contraction as well as cardiac output - ✔✔Digitalis
✔✔Symptoms of Digitalis toxicity - ✔✔-Yellow Vision
-Nausea
-Vomiting
-Drowsiness
✔✔Sinus Rhythm PR interval - ✔✔0.12-0.20 seconds
ANSWERS RATED A+
✔✔Are caused by diseases of the valves or other structural abnormalities - ✔✔
✔✔5th intercostal space, anterior axillary line - ✔✔V5
✔✔Second heart sound is due to the closure of the pulmonic valves - ✔✔S2
✔✔Left arm is positive and the other limbs are negative - ✔✔lead aVL
✔✔Ability of cardiac cells to receive electrical impulse and transmit stimulus to cardiac
cells - ✔✔conductivity
✔✔Autonomic Nervous Systemen (ANS) - ✔✔subdivided into the sympathetic and
parasympathetic; also influences heart
✔✔3 bipolar leads and 3 augmented leads. These leads record electrical potentials in
the frontal plane - ✔✔limb leads
✔✔4th intercostal space, left sternal border - ✔✔V2
✔✔Left arm is positive and the right arm is negative - ✔✔Lead I
✔✔5th intercostal space, midaxillary line - ✔✔V6
✔✔The normal P wave in standard, limb, and precordial leads does not exceed what? -
✔✔0.11s in duration or 2.5 mm in height.
✔✔The initial negative deflection produced by ventricular depolarization - ✔✔Q wave
✔✔The first positive deflection produced by ventricular depolarization - ✔✔R wave
✔✔1st negative deflection produced by ventricular depolarization, following R wave -
✔✔S wave
✔✔The deflection produced by ventricular repolarization - ✔✔T wave
✔✔Deflection seen following the T wave but preceding the next P wave - ✔✔U wave
✔✔Interval between 2 R waves - ✔✔R-R interval
✔✔line for the end of the P wave to the onset of the QRS complex - ✔✔PR segment
, ✔✔Point at which QRS complex ends and the ST segment begins - ✔✔J (RST)
Junction
✔✔Sweat, lotion on patient's skin or tension on the electrode can interfere with the
signal - ✔✔Wandering Baseline
✔✔Caused by electrical appliances or apparatus being used nearby while the tracing is
taken - ✔✔60-cycle Interference
✔✔Non-invasive diagnostic procedure to determine presence and severity of coronary
artery disease - ✔✔Stress Testing
✔✔Some indications for stress testing are: - ✔✔-Evaluation of chest pain in patient with
normal EKG.
-Evaluation of patient who has recently had a myocardial infarction.
-Diagnosis and treatment of arrhythmias.
✔✔What does the patient usually experience during Ischemia - ✔✔chest pain and/or
discomfort...... usually called Angina
✔✔The hallmark of infarction on EKG is what? - ✔✔Presence of abnormal Q waves
✔✔Enables evaluation of pt's heart rate, rhythm, QRST morphology and during usual
daily activities - ✔✔Ambulatory EKG monitoring
✔✔Sinus bradycardia PR interval - ✔✔0.12-0.20 seconds
✔✔This may result in varying QRS amplitude - ✔✔Artifacts: Battery depletion
✔✔Prompt treatment of hypoxemia may prevent what? - ✔✔cardiac arrest
✔✔For breathing spontaneously - ✔✔Mask and nasal canals can be used to administer
oxygen
✔✔Increases the force of cardiac contraction as well as cardiac output - ✔✔Digitalis
✔✔Symptoms of Digitalis toxicity - ✔✔-Yellow Vision
-Nausea
-Vomiting
-Drowsiness
✔✔Sinus Rhythm PR interval - ✔✔0.12-0.20 seconds
