Pneumocystis jirovecii Pneumonia

question 1 of 1 course: Biomedical Science(Degree)
question 1 of 1 course: Biomedical Science(Degree)

Q: Pneumocystis jirovecii pneumonia is an opportunistic infection whose causative agent can ideally be demonstrated in lung biopsies or bronchial washings using:

Did You Know?

False. In adults, the primary site of erythropoietin (EPO) production is the kidney, specifically specialized interstitial fibroblasts in the peritubular capillary bed of the renal cortex. The liver produces a smaller amount of EPO and is the main site of production during fetal life. EPO production is stimulated by tissue hypoxia, which is sensed by oxygen-sensing mechanisms in the kidney. When oxygen delivery to the kidneys is low (as in anemia, high altitude, or heart failure), hypoxia-inducible factors (HIFs) are activated, leading to increased transcription of the EPO gene. The secreted EPO then travels to the bone marrow, where it stimulates the proliferation and differentiation of red blood cell precursors. In chronic kidney disease, the loss of EPO-producing cells leads to anemia, which is treated with synthetic erythropoiesis-stimulating agents (ESAs).

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