An air embolism associated with diving occurs when:
A. the diver hyperventilates prior to entering the water.
B. the diver holds his or her breath during a rapid ascent.
C. the alveoli completely collapse due to high pressure.
D. high water pressure forces air into the mediastinum.
Answer: B. the diver holds his or her breath during a rapid ascent.
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A hypotonic solution:
A) Can cause shrinking of red blood cells. B) Can cause swelling of blood cells. C) Has the same concentration as red blood cells. D) Minimizes patient discomfort and red blood cell damage.
When the sheath of a braid-on-braid rope slides on its core, a firefighter should:
A. destroy the rope immediately. B. record the damage in the rope log. C. cut off the end to pull off excess material. D. store the rope in a dryer place, moisture is causing the slippage.
____ mortis is a condition caused by relaxation of the vascular bed and a pooling of blood in dependant portions of the body.
A. Livor B. Algor C. Rigor D. Pallor
A 4-month-old develops oral white spots and shallow ulcers. The pediatrician diagnoses thrush which is caused by:
a. Escherichia coli. b. Streptococcal bacteria. c. Candida albicans. d. Staphylococcal bacteria.