OSCE Clinical Procedures and Protocols 2

Question 1

When performing a venipuncture, which vein is the FIRST choice for routine blood collection in adults?

Accepted Answer

Median cubital vein

Answer

The median cubital vein is preferred because it is large, well-anchored, and poses less risk of arterial puncture or nerve injury.

Question 2

A patient requires a nasogastric (NG) tube insertion. After placement, which is the MOST reliable bedside method to confirm correct gastric positioning?

Accepted Answer

Checking pH of aspirate (pH ≤ 5.5)

Answer

Aspirate pH ≤ 5.5 is the most reliable bedside confirmation; auscultation alone is unreliable and can miss bronchial placement.

Question 3

During urinary catheterization of a male patient, resistance is encountered at the external sphincter. What is the correct next step?

Accepted Answer

Ask the patient to take slow deep breaths and gently advance during relaxation

Answer

Having the patient breathe deeply relaxes the external urethral sphincter, allowing gentle advancement of the catheter without trauma.

Question 4

Which landmark is used for a standard lumbar puncture (LP) in adults?

Accepted Answer

L3–L4 interspace

Answer

The L3–L4 interspace (or L4–L5) is used because the spinal cord ends at L1–L2, minimizing risk of cord injury.

Question 5

When performing a wound closure with interrupted sutures, how far from the wound edge should the needle typically enter the skin?

Accepted Answer

5–10 mm

Answer

Entering 5–10 mm from the wound edge ensures adequate tissue bite for secure closure without causing ischemia from excessive tension.

OSCE Practice Test

OSCE Practice Test

OSCE Clinical Procedures and Protocols 2