Answer to Question 1
C
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A Primary intention is not a phase of wound healing. Wounds that heal by primary intention have minimal tissue loss, such as a surgical wound. The edges are approximated, and the risk of infection is low.
B During the inflammatory phase, platelets gather to stop bleeding, a fibrin matrix forms, and white blood cells reach the wound, clearing it of debris.
C During the proliferative phase, the wound fills with granulation tissue (including collagen formation), the wound contracts, and the wound is resurfaced by epithelialization.
D Secondary intention is not a phase of wound healing. Wounds that heal by secondary intention have loss of tissue, such as a pressure ulcer. The wound is left open until it becomes filled by scar tissue.
Answer to Question 2
A
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A Garlic lowers blood pressure and blood lipids, but it inhibits platelet aggregation and thus may prolong bleeding time. The physician needs to be notified before surgery to assess the patient for bleeding during the postoperative period.
B There is no evidence to suggest that garlic can cause severe hypotension in a hypertensive patient.
C Garlic is not known to cause nausea and vomiting.
D Garlic is not known to treat depression. St. John's wort is taken by patients experiencing depression.
Formation of disease-causing amyloid fibrils
Formation of a peptide bond by a condensation reaction.
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Illustration of the anatomy of a normal subject (A) and a patient with sleep apnea (B)