In patients who do not have HIV, which underlying condition is considered a risk factor for acquiring PCP?
a. Malaria
b. Cystic fibrosis
c. Cytomegalovirus
d. Myasthenia gravis
B
In patients who do not have HIV, the underlying conditions that are most commonly considered risk factors for the opportunistic infection of PCP include asthma, chronic obstructive pulmonary disease (COPD), cystic fibrosis, systemic lupus erythematosus (SLE), pregnancy, rheumatoid arthritis, Epstein-Barr infection, and ulcerative colitis. In addition, those taking high levels of corticosteroid agents are at an increased risk for acquiring PCP.
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Examine the photomicrograph on the right, taken using an oil-immersion objective, the highest practical magnification of a light microscope. (The final magnification is 770x.)
(a) Based on your observation, identify the kingdom to which the organism belongs. (b) Justify your answer.
When non-homologous chromosomes exchange parts, a _____ has occurred
A. reciprocal translocation. B. mismatch. C. base exclusion. D. inversion. E. closed reading frame.
Which of the following might cause metabolic acidosis?
a. vomiting b. overuse of antacids c. hormonal disorders d. increased carbon dioxide excretion e. kidney failure causing decreased H+ excretion
Genes on which chromosome determines if the sex of a child will be male or female?
A) X B) Y C) 21st D) 5th E) 19th