A small, slender, gram-negative rod was recovered from the blood cultures of a patient following root canal surgery. At 48 hours, the following results were observed:
BAP and CHOC agars: small gray colonies that tend to pit the agar
MAC agar: no growth
Odor upon opening the agar plates: bleach-like
This organism will also be
A) catalase negative and oxidase positive. B) catalase and oxidase negative.
C) catalase and oxidase positive. D) catalase positive and oxidase negative.
A
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Multiple sclerosis is classified as which of the following types of disorders?
A) Acquired immunodeficiency B) Autoimmune C) Autoinflammatory D) Autotoxic
Why is a mouthpiece usually preferable over a mask for delivery of nebulizer treatments?
A. A mouthpiece has more flexibility than a mask. B. Medication can deposit on the patient's face when a mask is used. C. The patient may receive too much medication when a mask is used. D. A mouthpiece gives the patient more independence than a mask.
An example of an emulsion that consists of water inside an oil phase is
A) liniment B) aromatic water C) cream D) both a and b
When the surgeon administers the anesthesia and performs the procedure, use modifier:
A. 23. B. 62. C. 47. D. 26.