Which of the following blood tests measures the volume of red blood cells within the total volume of blood?
a. erythrocyte sedimentation rate
b. culture and sensitivity
c. hematocrit
d. pro-time
c
Explanation:
a. erythrocyte sedimentation rate: measures rate at which red blood cells settle out of blood to form sediment
b. culture and sensitivity: determines if there is bacteria
c. hematocrit: correct
d. pro-time: measures how long it takes for a clot to form
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Which of the following statements about Notch 1 is correct? (Select all that apply.)
a. Notch 1 is expressed on thymic epithelial cells. b. In the absence of Notch 1 expression, T cells can complete their differentiation. c. Notch 1 is to T-cell development as Pax-5 is to B-cell development. d. Notch 1 contains two distinct domains, one of which is proteolytically cleaved and becomes a transcription factor in the nucleus. e. The extracellular domain of Notch 1 must interact with a ligand on thymic epithelium to initiate cleavage and separation of the Notch 1 extracellular and intracellular domains.
All of the following are ways in which plasma cells differ from memory cells except _____
a. plasma cells lack surface immunoglobulin b. cellular morphology c. plasma cells are CD27-negative d. plasma cells have undergone isotype switching e. plasma cells are short-lived.
Clients with chronic autoimmune hepatitis may display which of the following clinical manifestations upon physical exam? Select all that apply
A) Enlarged liver B) Jaundice C) Bacterial meningitis D) Nuchal rigidity E) Edematous joints
All of the following targeted cessation interventions have been shown to be successful on college campuses EXEPT
A) group counseling. B) a two-credit smoking cessation course. C) therapy in problem-solving and stress reduction. D) mentoring.