NHA CET CORE EXAMS SET 2025/2026 QUESTIONS AND
SOLUTIONS GRADED A+ TIP
✔✔What is a more medically correct term for chest pain? - ✔✔Angina
✔✔When the ventricles remain depolarized (contracted), what is shown on an EKG
tracing - ✔✔ST segment
✔✔The normal human heart rate is between ___ and ___ bpm. - ✔✔60 and 100 bpm
✔✔An Inverted T Wave is an indicator for what type of arrhythmia? - ✔✔Ischemia
✔✔The distance between R wave to R wave can be used to calculate what kind of rate?
- ✔✔Ventricular Rate
✔✔What arrhythmia is associated with having a heart rate of over 100 bpm? - ✔✔Sinus
Tachycardia
✔✔When 4 chambers of the heart are at rest, what is shown on the EKG tracing? -
✔✔Baseline
✔✔Oxygen/Carbon Dioxide exchange takes place in the ___?___ of the lungs. -
✔✔Alveoli
✔✔An Elevated ST Segment is an indicator for what type of arrhythmia? -
✔✔Myocardial Infarction
✔✔When the ventricles repolarize (or are at rest), what is shown on the EKG tracing? -
✔✔T wave
✔✔What arrhythmia is associated with having a heart rate under 60 bpm - ✔✔Sinus
Bradycardia
✔✔what does the aV (in such leads as aVR, aVL, aVF) stand for? - ✔✔Augmented
voltage
✔✔What is the standard number of leads in a EKG tracing - ✔✔12
✔✔What are you feeling for in a pt's wrist to find their heart rate? - ✔✔Radial Artery
✔✔When the heart is in diastolic State, what pacemaker releases an electrical pulse? -
✔✔SA node
, ✔✔What blood vessels contain a pulse - ✔✔arteries
✔✔A full cycle of Atria in action is shown as what on the EKG tracing - ✔✔PR interval
✔✔In cardiology, what does M.I. stand for? - ✔✔myocardial infarction
✔✔(T/F) Normal Sinus rhythm is between 70/min and 120/mm - ✔✔False
✔✔What chamber of the heart has the thickest Myocardium - ✔✔Left ventricle
✔✔(T/F) A patient that has fallen asleep will interfere with EKG tracing - ✔✔False
✔✔(T/F) A Q wave is always negative - ✔✔False
✔✔What Arrhythmia is associated with sawtooth waves between QRS complexes? -
✔✔Atrial Flutter
✔✔If U waves are shown on EKG tracing, what type of vitamin deficiency is present? -
✔✔Potassium
✔✔Upper chambers of the heart - ✔✔atria
✔✔Affects both the atria and the ventricles by increasing heart rate conduction and
irritability - ✔✔Sympathetic Nervous System
✔✔What is a positive holter? - ✔✔one that has recorded abnormalities
✔✔What is a negative holter? - ✔✔A negative holter will have no significant arrhythmias
or ST changes
✔✔Abbreviation for Myocardial infarction - ✔✔M.I.
✔✔Infarction refers to what? - ✔✔To the actual death of the myocardial cells.
✔✔Occurs when there is a decrease in the amount of blood flow to a section of the
heart - ✔✔Ischemia
✔✔Electrical impulses go down the usual pathway but encounter blocks and delays -
✔✔conduction blocks
✔✔Electrical impulses originate from somewhere else other than the sinus node -
✔✔Ectopic Rhythms
SOLUTIONS GRADED A+ TIP
✔✔What is a more medically correct term for chest pain? - ✔✔Angina
✔✔When the ventricles remain depolarized (contracted), what is shown on an EKG
tracing - ✔✔ST segment
✔✔The normal human heart rate is between ___ and ___ bpm. - ✔✔60 and 100 bpm
✔✔An Inverted T Wave is an indicator for what type of arrhythmia? - ✔✔Ischemia
✔✔The distance between R wave to R wave can be used to calculate what kind of rate?
- ✔✔Ventricular Rate
✔✔What arrhythmia is associated with having a heart rate of over 100 bpm? - ✔✔Sinus
Tachycardia
✔✔When 4 chambers of the heart are at rest, what is shown on the EKG tracing? -
✔✔Baseline
✔✔Oxygen/Carbon Dioxide exchange takes place in the ___?___ of the lungs. -
✔✔Alveoli
✔✔An Elevated ST Segment is an indicator for what type of arrhythmia? -
✔✔Myocardial Infarction
✔✔When the ventricles repolarize (or are at rest), what is shown on the EKG tracing? -
✔✔T wave
✔✔What arrhythmia is associated with having a heart rate under 60 bpm - ✔✔Sinus
Bradycardia
✔✔what does the aV (in such leads as aVR, aVL, aVF) stand for? - ✔✔Augmented
voltage
✔✔What is the standard number of leads in a EKG tracing - ✔✔12
✔✔What are you feeling for in a pt's wrist to find their heart rate? - ✔✔Radial Artery
✔✔When the heart is in diastolic State, what pacemaker releases an electrical pulse? -
✔✔SA node
, ✔✔What blood vessels contain a pulse - ✔✔arteries
✔✔A full cycle of Atria in action is shown as what on the EKG tracing - ✔✔PR interval
✔✔In cardiology, what does M.I. stand for? - ✔✔myocardial infarction
✔✔(T/F) Normal Sinus rhythm is between 70/min and 120/mm - ✔✔False
✔✔What chamber of the heart has the thickest Myocardium - ✔✔Left ventricle
✔✔(T/F) A patient that has fallen asleep will interfere with EKG tracing - ✔✔False
✔✔(T/F) A Q wave is always negative - ✔✔False
✔✔What Arrhythmia is associated with sawtooth waves between QRS complexes? -
✔✔Atrial Flutter
✔✔If U waves are shown on EKG tracing, what type of vitamin deficiency is present? -
✔✔Potassium
✔✔Upper chambers of the heart - ✔✔atria
✔✔Affects both the atria and the ventricles by increasing heart rate conduction and
irritability - ✔✔Sympathetic Nervous System
✔✔What is a positive holter? - ✔✔one that has recorded abnormalities
✔✔What is a negative holter? - ✔✔A negative holter will have no significant arrhythmias
or ST changes
✔✔Abbreviation for Myocardial infarction - ✔✔M.I.
✔✔Infarction refers to what? - ✔✔To the actual death of the myocardial cells.
✔✔Occurs when there is a decrease in the amount of blood flow to a section of the
heart - ✔✔Ischemia
✔✔Electrical impulses go down the usual pathway but encounter blocks and delays -
✔✔conduction blocks
✔✔Electrical impulses originate from somewhere else other than the sinus node -
✔✔Ectopic Rhythms
