Phlebotomy National Exam (NHA)
Questions and Answers | Latest
Version | 2025/2026 | Correct & Verified
A patient’s ECG shows a prolonged QT interval. This may increase the risk of:
✔✔Ventricular arrhythmias
Which vein is located on the inner side of the elbow and often used for cardiac blood draws?
✔✔Median cubital vein
What does the term “diastole” mean?
✔✔Relaxation of the heart chambers
A patient’s blood pressure is 180/110 mmHg. This is classified as:
✔✔Hypertensive crisis
Which cardiac enzyme rises within hours after a heart attack?
✔✔Creatine kinase-MB (CK-MB)
1
,During auscultation, the “lub-dub” sound represents:
✔✔Closure of heart valves
What is the primary purpose of performing an electrocardiogram (ECG)?
✔✔To measure the electrical activity of the heart
Which heart valve is located between the left atrium and left ventricle?
✔✔Mitral valve
A patient’s heart rate is 120 bpm. This is called:
✔✔Tachycardia
Which blood vessel carries oxygen-rich blood from the lungs to the heart?
✔✔Pulmonary veins
What is the thick muscular wall of the heart called?
✔✔Myocardium
2
,During ventricular contraction, blood is pumped into the:
✔✔Aorta and pulmonary artery
What term describes an irregular heartbeat?
✔✔Arrhythmia
Which cardiac test requires electrodes to be placed on the patient’s chest and limbs?
✔✔Electrocardiogram (ECG)
A patient is experiencing chest pain and shortness of breath. What is the first vital sign to assess?
✔✔Heart rate
Which heart chamber pumps blood to the lungs?
✔✔Right ventricle
What is the main pacemaker of the heart?
✔✔Sinoatrial (SA) node
3
, Which coronary artery blockage can lead to a myocardial infarction?
✔✔Left anterior descending artery
What is the name of the procedure that monitors the heart over 24 hours?
✔✔Holter monitor
Which pulse site is located on the wrist?
✔✔Radial pulse
A patient has bradycardia. This means their heart rate is:
✔✔Slower than normal
Which type of blood cells carry oxygen to the body?
✔✔Red blood cells
During an ECG, what wave represents atrial depolarization?
✔✔P wave
4
Questions and Answers | Latest
Version | 2025/2026 | Correct & Verified
A patient’s ECG shows a prolonged QT interval. This may increase the risk of:
✔✔Ventricular arrhythmias
Which vein is located on the inner side of the elbow and often used for cardiac blood draws?
✔✔Median cubital vein
What does the term “diastole” mean?
✔✔Relaxation of the heart chambers
A patient’s blood pressure is 180/110 mmHg. This is classified as:
✔✔Hypertensive crisis
Which cardiac enzyme rises within hours after a heart attack?
✔✔Creatine kinase-MB (CK-MB)
1
,During auscultation, the “lub-dub” sound represents:
✔✔Closure of heart valves
What is the primary purpose of performing an electrocardiogram (ECG)?
✔✔To measure the electrical activity of the heart
Which heart valve is located between the left atrium and left ventricle?
✔✔Mitral valve
A patient’s heart rate is 120 bpm. This is called:
✔✔Tachycardia
Which blood vessel carries oxygen-rich blood from the lungs to the heart?
✔✔Pulmonary veins
What is the thick muscular wall of the heart called?
✔✔Myocardium
2
,During ventricular contraction, blood is pumped into the:
✔✔Aorta and pulmonary artery
What term describes an irregular heartbeat?
✔✔Arrhythmia
Which cardiac test requires electrodes to be placed on the patient’s chest and limbs?
✔✔Electrocardiogram (ECG)
A patient is experiencing chest pain and shortness of breath. What is the first vital sign to assess?
✔✔Heart rate
Which heart chamber pumps blood to the lungs?
✔✔Right ventricle
What is the main pacemaker of the heart?
✔✔Sinoatrial (SA) node
3
, Which coronary artery blockage can lead to a myocardial infarction?
✔✔Left anterior descending artery
What is the name of the procedure that monitors the heart over 24 hours?
✔✔Holter monitor
Which pulse site is located on the wrist?
✔✔Radial pulse
A patient has bradycardia. This means their heart rate is:
✔✔Slower than normal
Which type of blood cells carry oxygen to the body?
✔✔Red blood cells
During an ECG, what wave represents atrial depolarization?
✔✔P wave
4
