Which of the following are components of the complete blood count (CBC)? Select all that apply.
Hemoglobin level
Blood glucose level
White blood cell count
Platelet count
Red blood cell count
Correct Answer : A,C,D,E
A. Hemoglobin level is a key component of the CBC, reflecting the oxygen-carrying capacity of the blood.
B. Blood glucose level is not part of the CBC; it is typically measured separately in metabolic panels or glucose tests.
C. White blood cell count is included in the CBC and is important for assessing the immune response.
D. Platelet count is also part of the CBC and is essential for evaluating clotting function.
E. Red blood cell count is included in the CBC and is crucial for assessing overall blood health and anemia status.
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Correct Answer is B
Explanation
A. While deep breathing can help alleviate pain, it is not the primary cause of pain in sickle cell anemia; this response could minimize the client's experience.
B. Sickle cell anemia causes red blood cells to become rigid and shaped like a sickle, which can obstruct blood flow and lead to vaso-occlusive crises, resulting in pain.
C. Although sickle cell anemia is a genetic disorder, simply stating that the mutated gene causes increased pain is too vague and does not explain the pain mechanism adequately.
D. While anemia can contribute to fatigue and some discomfort, the pain in sickle cell anemia is primarily due to the sickling of red blood cells and subsequent blockage of blood flow, rather than just the lack of hemoglobin.
Correct Answer is B
Explanation
A. A quantitative RNA assay is used to measure the amount of HIV RNA in the blood and is not used for confirmatory diagnosis after a positive ELISA.
B. The Western blot analysis is the standard confirmatory test for HIV following a positive ELISA result, as it specifically detects the presence of antibodies to HIV proteins.
C. A viral load test assesses the level of virus in the blood but does not confirm the diagnosis of HIV.
D. The CD4+ T-cell count is used to assess immune function in individuals with HIV but is not a confirmatory test for the diagnosis of the virus.