Asked by Hannah Thompson on Jun 06, 2024
Verified
A blood test performed on whole blood to determine the percentage of RBCs in the total blood volume is:
A) RBC.
B) WBC.
C) Hct.
D) PTT.
Hematocrit (Hct)
The percentage of red blood cells in a volume of blood.
- Ascertain the significance of typical blood analyses in the identification of health conditions.
Verified Answer
PD
Pardeep DalalJun 12, 2024
Final Answer :
C
Explanation :
Hct (hematocrit) is a blood test that measures the percentage of RBCs in the total blood volume. This is calculated by centrifuging a blood sample, which causes the RBCs to settle at the bottom of the tube, and then measuring the height of the RBCs as a percentage of the total blood volume. RBC (choice A) would not be correct as it refers to a specific type of blood cell, not a test for determining the percentage of RBCs. WBC (choice B) refers to white blood cells, which are not involved in determining the percentage of RBCs. PTT (choice D) is a test for measuring the clotting ability of blood and is not related to the percentage of RBCs.
Learning Objectives
- Ascertain the significance of typical blood analyses in the identification of health conditions.
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