Assessment of the Hematologic System

These flashcards cover key concepts related to the assessment and functioning of the hematologic system including blood components, disorders, diagnostic assessments, and treatment interventions.

What is the function of bone marrow in the hematologic system?

Bone marrow is responsible for blood formation.

What are the main components of blood?

Blood is comprised of 55% plasma and 45% blood cells (RBCs, WBCs, platelets).

What stimulates increased production of red blood cells?

Increased demand for RBCs, such as during bleeding.

What is the lifespan of a mature red blood cell?

Mature red blood cells have a lifespan of about 120 days.

What does hemostasis refer to in the context of blood clotting?

Hemostasis is the localized blood clotting of damaged vessels to prevent major blood loss.

What role do leukocytes (WBCs) play in the body?

Leukocytes protect the body from foreign invasion through inflammation and immunity.

What is thrombocytopenia, and what can cause it?

Thrombocytopenia is a condition characterized by a low platelet count, and it can be caused by various factors including autoimmune disorders.

What are the three hallmarks of Polycythemia Vera?

Massive production of RBCs, excessive leukocyte production, and excessive production of platelets.

What is the hallmark sign of Heparin Induced Thrombocytopenia?

A thrombocytopenia that occurs after heparin exposure.

What are common symptoms of Sickle Cell Disease during a sickling episode?

Severe pain and impaired blood flow leading to ischemia.