Which of the following microorganisms is cultivated from pus of a tooth with a periodontal abscess?
A) Gram-negative anaerobic rods
B) Gram-negative facultative cocci
C) Gram-negative nonmotile cocci and rods
D) Gram-positive facultative aerobics
E) Gram-positive anaerobic rods
A
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When checking for proper placement of an endotracheal tube in an adult patient on chest radio-graph, it is noted that the distal tip of the tube is 2 cm above the carina. Which of the following actions would you recommend?
a. Withdraw the tube by 2 to 3 cm (using tube markings as a guide). b. Withdraw the tube by 7 to 8 cm (using tube markings as a guide). c. Advance the tube by 2 to 3 cm (using tube markings as a guide). d. Advance the tube by 7 to 8 cm (using tube markings as a guide).
Which of the following lipids are derivatives of fatty acids comprised of 20 C atoms including a 5 C cyclopentane ring?
A. Phospholipids B. Prostaglandins C. Triglycerides D. Cholesterol
Public health focuses on
A) prevention issues B) curative medical care C) foundation support D) environmental health
An advantage of a handheld scanner is that it ____.
A. feeds one sheet of paper through at a time B. is easier to use than other types of scanners C. produces the highest quality input D. is less expensive than other types of scanners E. is more configurable than other scanners