AMCA CMAC EXAM 2026 QUESTIONS
AND ANSWERS
1. When performing an EKG, where should the V4 electrode be placed?
A. Fourth intercostal space, right sternal border
B. Fourth intercostal space, left sternal border
C. Fifth intercostal space, midclavicular line
D. Fifth intercostal space, midaxillary line
Answer: C
Conceptual Explanation: V4 is placed at the fifth intercostal space at the midclavicular
line. V1 is at the 4th intercostal space right sternal border, V2 at the 4th intercostal space
left sternal border, and V6 at the midaxillary line.
2. In the order of draw for venipuncture, which tube should be collected first if blood cultures
are not ordered?
A. Grey (Sodium Fluoride)
B. Lavender (EDTA)
C. Green (Heparin)
D. Light Blue (Sodium Citrate)
,Answer: D
Conceptual Explanation: According to the CLSI standards, the order of draw starts with
blood cultures, followed by coagulation tubes (Light Blue), then serum tubes (Red/SST),
then Heparin (Green), EDTA (Lavender/Pink), and finally Oxalate/Fluoride (Grey).
3. A patient is diagnosed with nephrolithiasis. Which of the following describes this
condition?
A. Inflammation of the kidney
B. Presence of stones in the kidney
C. Infection of the bladder
D. Enlargement of the ureter
Answer: B
Conceptual Explanation: Nephro- refers to the kidney and -lithiasis refers to the presence
or formation of stones. Inflammation would be nephritis.
4. Which injection route is used for an Allergy Skin Test?
A. Intramuscular
B. Subcutaneous
C. Intradermal
D. Intravenous
Answer: C
, Conceptual Explanation: Intradermal injections are used for allergy testing and TB
screening because they allow for the observation of a local reaction just under the
epidermis.
5. What is the standard needle gauge used for a routine adult venipuncture?
A. 18 gauge
B. 25 gauge
C. 21 gauge
D. 27 gauge
Answer: C
Conceptual Explanation: A 21-gauge needle is the standard size for adult venipuncture.
18 is used for blood donation, while 23-25 are used for small veins (butterfly needles).
6. On an EKG tracing, what does the P wave represent?
A. Ventricular depolarization
B. Atrial repolarization
C. Atrial depolarization
D. Ventricular repolarization
Answer: C
AND ANSWERS
1. When performing an EKG, where should the V4 electrode be placed?
A. Fourth intercostal space, right sternal border
B. Fourth intercostal space, left sternal border
C. Fifth intercostal space, midclavicular line
D. Fifth intercostal space, midaxillary line
Answer: C
Conceptual Explanation: V4 is placed at the fifth intercostal space at the midclavicular
line. V1 is at the 4th intercostal space right sternal border, V2 at the 4th intercostal space
left sternal border, and V6 at the midaxillary line.
2. In the order of draw for venipuncture, which tube should be collected first if blood cultures
are not ordered?
A. Grey (Sodium Fluoride)
B. Lavender (EDTA)
C. Green (Heparin)
D. Light Blue (Sodium Citrate)
,Answer: D
Conceptual Explanation: According to the CLSI standards, the order of draw starts with
blood cultures, followed by coagulation tubes (Light Blue), then serum tubes (Red/SST),
then Heparin (Green), EDTA (Lavender/Pink), and finally Oxalate/Fluoride (Grey).
3. A patient is diagnosed with nephrolithiasis. Which of the following describes this
condition?
A. Inflammation of the kidney
B. Presence of stones in the kidney
C. Infection of the bladder
D. Enlargement of the ureter
Answer: B
Conceptual Explanation: Nephro- refers to the kidney and -lithiasis refers to the presence
or formation of stones. Inflammation would be nephritis.
4. Which injection route is used for an Allergy Skin Test?
A. Intramuscular
B. Subcutaneous
C. Intradermal
D. Intravenous
Answer: C
, Conceptual Explanation: Intradermal injections are used for allergy testing and TB
screening because they allow for the observation of a local reaction just under the
epidermis.
5. What is the standard needle gauge used for a routine adult venipuncture?
A. 18 gauge
B. 25 gauge
C. 21 gauge
D. 27 gauge
Answer: C
Conceptual Explanation: A 21-gauge needle is the standard size for adult venipuncture.
18 is used for blood donation, while 23-25 are used for small veins (butterfly needles).
6. On an EKG tracing, what does the P wave represent?
A. Ventricular depolarization
B. Atrial repolarization
C. Atrial depolarization
D. Ventricular repolarization
Answer: C
