The Allen test is performed as a precautionary measure before which procedure?

A) Heel stick
B) Venipuncture
C) Arterial puncture
D) Lumbar puncture

Allen Test

A medical procedure used to evaluate the arterial blood flow to the hand, ensuring patency before puncturing the radial artery, for example, for blood gas analysis.

Arterial Puncture

A medical procedure involving the insertion of a needle into an artery, typically to draw blood for diagnostic testing.

Precautionary Measure

Actions taken in advance to prevent potential hazards or to minimize risk in various situations, ranging from health care to environmental management.