Which of following specimens is an error in the pre-analytical phase of laboratory testing?
A) Stool collected in preservative prior to transportation from a physician's office
B) Urine collected in a plastic food container
C) Pleural fluid collected via syringe after cleansing of the skin
D) Blood culture collected prior to the infusion of penicillin
B
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Which of the following is the result of histamine and other chemicals in the body during anaphylaxis?
A) Bronchodilation occurs, blood vessels dilate, and swelling appears in areas around the vocal cords. B) Urticaria occurs due to fluid being shunted from the skin, causing dehydration of tissue. C) Capillaries become leaky, bronchoconstriction occurs, and swelling appears in areas around the vocal cords. D) Blood vessels constrict, capillaries become leaky, and bronchoconstriction occurs.
Decubitus angina is also called:
A) nocturnal angina B) silent angina C) unstable angina D) classic angina