Which statement correctly pairs a puncture location with the bleeding-time cuff setting for the Simplate Bleeding Time Test?

Which statement correctly pairs a puncture location with the bleeding-time cuff setting for the Simplate Bleeding Time Test?

• A. Puncture at 1 cm below wrist and cuff at 20 mmHg
• B. Puncture 5 cm below the antecubital bend and cuff at 40 mmHg
• C. Puncture at the antecubital crease and cuff at 30 mmHg
• D. Puncture at 10 cm below elbow and cuff at 60 mmHg

Answer: (B)

In the Simplate Bleeding Time Test, two factors are kept strictly reproducible to make results comparable: where you puncture the skin and how you control blood flow with a cuff. The puncture should be made on the volar forearm about 5 cm below the antecubital crease. This spot provides a consistent surface and perfusion, and it’s away from the elbow crease so the incision depth remains reliable across patients. The cuff is placed on the upper arm and inflated to a fixed pressure—40 mmHg. This partial occlusion standardizes arterial inflow to the forearm, creating a controlled bleeding period that reflects the onset of hemostasis. If the cuff were much higher, perfusion could be overly restricted and skew the time; if it were much lower, flow wouldn’t be standardized and results would vary widely. Therefore, the combination of a puncture about 5 cm below the antecubital bend with a 40 mmHg cuff is the standard pairing for the Simplate method.

In the Simplate Bleeding Time Test, two factors are kept strictly reproducible to make results comparable: where you puncture the skin and how you control blood flow with a cuff. The puncture should be made on the volar forearm about 5 cm below the antecubital crease. This spot provides a consistent surface and perfusion, and it’s away from the elbow crease so the incision depth remains reliable across patients.

The cuff is placed on the upper arm and inflated to a fixed pressure—40 mmHg. This partial occlusion standardizes arterial inflow to the forearm, creating a controlled bleeding period that reflects the onset of hemostasis. If the cuff were much higher, perfusion could be overly restricted and skew the time; if it were much lower, flow wouldn’t be standardized and results would vary widely. Therefore, the combination of a puncture about 5 cm below the antecubital bend with a 40 mmHg cuff is the standard pairing for the Simplate method.