Homogentisic acid (HGA), which is colorless, can convert to a dark compound when:
A) reacted with hydrogen ions in slightly acid urines.
B) exposed to carbon dioxide.
C) mixed with hydrogen peroxide produced in acidic urines.
D) exposed to air in an alkaline urine.
D
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Which of the following is not that helpful for patients in a waiting room?
A. Storage for coats and umbrellas B. Appropriate reading materials C. Coffee and snacks D. An overhead speaker for calling names
After obtaining a peak expiratory flow reading of 200 mL, you administered one bronchodilator treatment to a 21-year-old woman with an acute episode of expiratory wheezing. The next peak flow reading is 400 mL. You should:
A) recognize that the patient's condition has improved. B) give another bronchodilator treatment and reassess. C) try another treatment modality to treat her wheezing. D) assist ventilations and be prepared to intubate her.