NRCMA Exam Dumps : Nationally Registered Certified Medical Assistant

Lipidsis the scientific term for fats. They are a broad group of naturally occurring molecules that include fats, waxes, sterols, fat-soluble vitamins, and others. Lipids are essential for storing energy, signaling, and acting as structural components of cell membranes. The other options are related to different substances:

Lactose: A sugar found in milk.

Lipoproteins: Complexes of lipids and proteins that transport lipids through the bloodstream.

Lacteals: Lymphatic vessels in the small intestine that absorb fats.

Capillaries are the smallest blood vessels in the human body, typically measuring between 5 to 10 micrometers in diameter. They form a network between the arterioles and venules and are the site of the exchange of oxygen, nutrients, and waste products between the blood and tissues. This extensive network ensures that every cell in the body is in close proximity to a capillary, facilitating efficient physiological exchange processes.

References:

Gray's Anatomy

Clinical Hematology and Fundamentals of Hemostasis

When a venipuncture is performed using a lavender top vacutainer tube, the sample is commonly used for hematology testing, such as complete blood counts (CBC). The lavender top tube contains an anticoagulant called EDTA (ethylenediaminetetraacetic acid), which prevents the blood from clotting. This allows for the preservation of the cellular components of the blood for accurate hematological analysis.

References:

Clinical Laboratory Science: The Basics and Routine Techniques by Jean Jorgenson Linné

Phlebotomy Essentials by Ruth E. McCall and Cathee M. Tankersley