Questions: Which position would the nurse place the feet and legs in when caring for a client with peripheral arterial insufficiency? Place them slightly lower than the head and chest. Use pillows to support the heels above the mattress. Raise the knees using the knee gatch on the bed. Elevate feet by raising the foot of the bed on blocks.

The answer is the first one: Place them slightly lower than the head and chest.

Explanation for each option:

1. Place them slightly lower than the head and chest.
   This is the correct position for a client with peripheral arterial insufficiency. Lowering the feet and legs helps improve arterial blood flow to the extremities by using gravity to assist blood flow to the lower parts of the body.

2. Use pillows to support the heels above the mattress.
   This option is generally used to prevent pressure ulcers on the heels, not specifically for improving arterial blood flow in peripheral arterial insufficiency.

3. Raise the knees using the knee gatch on the bed.
   Raising the knees can potentially impede blood flow and is not recommended for clients with peripheral arterial insufficiency, as it may worsen the condition by compressing blood vessels.

4. Elevate feet by raising the foot of the bed on blocks.
   Elevating the feet is typically used for venous insufficiency to promote venous return, but it is not suitable for arterial insufficiency, as it can further reduce arterial blood flow to the extremities.

In summary, for peripheral arterial insufficiency, the feet and legs should be placed slightly lower than the head and chest to facilitate better arterial circulation.