Explain the role of stromal cells in the hematopoietic microenvironment
What will be an ideal response?
Answer: Stromal cells express homing receptors for hematopoietic cells and produce components of the extracellular matrix (fibronectin, hemonectin, collagen, etc); they synthesize and secrete cytokines for growth, differentiation, and negative regulation; they produce membrane-bound cytokines for juxtacrine signaling (e.g., SCF, FL, SCI) to hematopoietic precursor cells.
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Which languages (in addition to English) are most in need at pharmacies in the United States today?
A) Spanish, Vietnamese, Chinese, and French B) Spanish, French, German, and Italian C) Chinese, Japanese, Bantu, and French D) Chinese, Spanish, Vietnamese, and German
During which of the following periods throughout APRV is CO2 exhaled by the patient? I. Phigh II. Tlow III. Thigh IV. Plow
A. I only B. I, IV only C. II, IIII only D. I, II, III, IV
The best use for bone marrow aspirate smears is:
a. Counting the differential b. Determining overall cellularity c. Estimating fat-to-cell ratio d. Evaluating for focal lesions such as lymphoma
Skin infections like boils and abscesses are caused by:
A) Staphylococcus aureus. B) Shigella. C) Streptococcus. D) Bacterocides.