**Question:** Platelets are stored at what temperature: September 2010

**Core Concept:** Platelets are small cell fragments in the blood that play a crucial role in blood clotting and wound healing. They are stored in specialized containers called blood banks.

**Why the Correct Answer is Right:** Platelets are stored at a specific temperature to maintain their functionality and viability. The correct answer is **A: 2-6°C (35.6-43°F)**. Storing platelets at this temperature ensures that they remain viable for a longer duration and can be transfused effectively to patients.

**Why Each Wrong Option is Incorrect:**

**Option B:** 15°C (59°F) is too low and may lead to platelet dysfunction and reduced effectiveness during transfusion.

**Option C:** 20-22°C (68-72°F) is too high, which can cause platelet activation and aggregation, potentially causing unwanted clotting reactions in patients.

**Option D:** 4°C (39.2°F) is too low, similar to option B, and may impair platelet function.

**Clinical Pearl:** Platelet storage at 2-6°C (35.6-43°F) helps maintain platelet quality and ensures optimal therapeutic effect when transfused to patients.

**Correct Answer:** Platelets are stored at 2-6°C (35.6-43°F), a temperature range known as the "storage cold chain." Maintaining platelets within this range ensures their stability, functionality, and effectiveness during transfusion.