Question

Venipuncture requires the needle to be a ________ degree angle to the skin.

1) 15
2) 30
3) 45
4) 90

Answer 1

Venipuncture typically requires the needle to be at a 15 to 30 degree angle to the skin, which is different from the 90° angle between tangential velocity and centripetal force, or the 0° and 90° angles that result in a zero projectile range.

Step-by-step explanation:

Venipuncture requires the needle to be inserted at a specific angle to ensure the process is successful and minimizes patient discomfort. This angle is typically a 15 to 30 degree angle to the skin, depending on the vein's depth and the patient's individual anatomy. It allows for the smooth entry of the needle into the vein for blood collection or the administration of medication.

When considering angles in other contexts, the angle formed between the vectors of tangential velocity and centripetal force is 90°, and the angle for which a projectile's range is zero is either at 90° or 0°. The understanding of angles and their applications can vary across different subjects and scenarios.