OSCE Clinical Procedures and Protocols 3

Question 1

During IV cannula insertion, blood is seen in the flashback chamber. What does this confirm?

Accepted Answer

The needle tip has entered a vein

Answer

Flashback of blood into the chamber confirms the needle tip is within the vessel, but the cannula must still be advanced before the needle is withdrawn.

Question 2

What is the correct depth for chest compressions in adult cardiopulmonary resuscitation (CPR) according to current AHA guidelines?

Accepted Answer

5–6 cm

Answer

Current AHA guidelines recommend compressing the chest at least 5 cm (2 inches) but no more than 6 cm (2.4 inches) to maximize cardiac output.

Question 3

When collecting an arterial blood gas (ABG) from the radial artery, which test should be performed first to assess collateral circulation?

Accepted Answer

Allen's test

Answer

Allen's test assesses patency of the ulnar artery collateral circulation before radial artery puncture to prevent hand ischemia.

Question 4

A patient needs a central venous catheter (CVC) via the internal jugular vein. What complication is MOST specific to this site compared to the subclavian approach?

Accepted Answer

Carotid artery puncture

Answer

Carotid artery puncture is the most site-specific complication of internal jugular CVC insertion due to the vessel's proximity.

Question 5

When applying a plaster of Paris backslab, which layer is applied FIRST directly against the skin?

Accepted Answer

Stockinette and orthopaedic wool (padding)

Answer

Stockinette followed by orthopaedic wool provides padding that protects the skin from pressure, heat, and plaster contact.

OSCE Practice Test

OSCE Practice Test

OSCE Clinical Procedures and Protocols 3