Capillary Tubes for Hematocrit Determination

What is a disposable glass or plastic tube used for hematocrit determination?

A) Pipette
B) Petri dish
C) Hematometer
D) Capillary tube

Answer:

A capillary tube

A capillary tube, which is a disposable glass or plastic tube, is used for hematocrit determination. It uses capillary action to draw blood into a small diameter tube for medical analysis.

The disposable glass or plastic tube used for hematocrit determination is a capillary tube. Hematocrit is the volume percentage of erythrocytes (red blood cells) in a sample of centrifuged blood. Capillary tubes take advantage of capillary action, drawing blood into a small diameter tube for medical analysis. Other options listed like Pipette, Petri dish, and Hematometer are not used in hematocrit determination.

Capillary tubes play a crucial role in medical laboratories for analyzing blood samples and determining hematocrit levels accurately. They are designed to collect a precise amount of blood for testing without contamination. Understanding the specific use of capillary tubes in hematocrit determination is essential for healthcare professionals to deliver accurate diagnoses and monitor patients' health effectively.