You are performing a microscopic examination of Mr. Henderson's urine sample. Under high-power magnification, you see the items shown in the picture. Which of the following is the most likely cause?
A. Vigorous exercise
B. Pyelonephritis
C. Heavy-metal poisoning
D. Renal ischemia
E. Allergic reaction
B. Pyelonephritis
The picture shows white blood cell casts, which may indicate pyelonephritis (inflammation of the kidney and renal pelvis).
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The elbows are suitable for use in applying acupressure:
a. generally anywhere on the body. b. only in smaller or more sensitive places. c. only on big robust areas. d. None of the above
Duchenne muscular dystrophy only affects males
a. True b. False
If you suspect a diaphragmatic hernia, DO NOT use _______________- _______________ _______________, which can worsen the condition by causing gastric distention
Fill in the blank(s) with correct word
Which of the following best represents the bias described in this situation?
An epidemiologist was interested in determining whether use of non-steroidal anti-inflammatory drugs (NSAIDS) causes gastrointestinal bleeding. S/he recruited 600 subjects who had been hospitalized with gastrointestinal bleeding and 600 subjects from the local community who had never been diagnosed with such a bleeding problem. Due to concern over their diagnosis, subjects who had experienced a gastrointestinal bleed were able to provide a more accurate recollection of their NSAID use, while the comparison subjects were more likely to underestimate their use. a. information bias b. confounding c. selection bias d. low sample size bias