A slow-growing, acid-fast bacillus provides the following reactions:
Niacin: no color change Pigment: no pigment when grown in dark or light
Nitrate: no color change Urease: no color change
Semi-quantitative catalase: 25 mm Arylsulfatase: no color change
Pyrazinamidase: pink Tellurite: black precipitate
Which of the following patient history/specimen types was the original source for this organism?
A) Skin lesion from a 39-year-old female who owns a tropical fish store
B) Sputum from an 18-year-old female illegal alien from Mexico
C) Stool from a 44-year-old male with HIV
D) Lymph node from a 4-month-old male after receiving the BCG vaccine
Question 2
The key to the successful use of bacteriostatic antibiotic in treating an infection is
A) the compliance of the patient. B) its mode of administration.
C) an immunocompetent state. D) its spectrum of activity.
The extent of acid rain in the United States has decreased.
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Titration of an amino acid
chem: acid-base
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