Question

To prevent hemoconcentration during venipuncture, you should

a. massage the area until a vein os located
b. ask the patient to release his or her fist when blood flow begins
c. ask the patient to vigorously pump his or her fist
d. redirect the needle several times until a vein is located

Answer 1

To prevent hemoconcentration during venipuncture, the patient should release his or her fist when blood flow begins.

Step-by-step explanation:

To prevent hemoconcentration during venipuncture, you should ask the patient to release his or her fist when blood flow begins. This is because when the patient keeps his or her fist tightly clenched during venipuncture, it can cause hemoconcentration.

Hemoconcentration refers to an increase in the concentration of red blood cells and other blood components due to a decrease in fluid volume. When the patient releases his or her fist, it allows the blood to flow freely, preventing hemoconcentration.