CMT Medical Procedures & Techniques 2

Question 1

When performing a 12-lead ECG, which electrode placement is used for lead V4?

Accepted Answer

5th intercostal space, left midclavicular line

Answer

V4 is placed at the 5th intercostal space at the left midclavicular line.

Question 2

Which needle gauge is most appropriate for a routine venipuncture in an adult with average veins?

Accepted Answer

21 gauge

Answer

A 21-gauge needle is the standard choice for routine adult venipuncture, balancing flow rate and patient comfort.

Question 3

What is the correct sequence for applying a sterile dressing to a wound?

Accepted Answer

Cleanse wound, apply sterile pad, secure with tape

Answer

The wound must be cleansed first, then the sterile pad is applied, and finally tape secures the dressing.

Question 4

During urinary catheterization, which principle must be strictly maintained throughout the procedure?

Accepted Answer

Surgical aseptic technique

Answer

Urinary catheterization requires strict surgical aseptic technique to prevent introduction of pathogens into the sterile urinary tract.

Question 5

A patient requires a nasogastric tube insertion. After insertion, what is the priority action before use?

Accepted Answer

Verify placement by checking gastric pH or X-ray

Answer

Confirming NG tube placement via gastric pH testing or chest X-ray is mandatory before any use to prevent aspiration.

(CMT) Certified Medical Technician Practice Test