A patient with a suspected malignant melanoma is seen in the dermatology clinic. Which of the following diagnostic tests would be performed to rule out a skin malignancy?
A) Tzanck smear
B) Skin biopsy
C) Patch testing
D) Skin scraping
Ans: B
Feedback: A skin biopsy is done to rule out malignancies of skin lesions. A Tzanck smear is used to examine cells from blistering skin conditions, such as herpes zoster. Patch testing is performed to identify substances to which the patient has developed an allergy. A skin scraping is done for a suspected fungal infection.
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When teaching a community health class on cardiac risk factor reduction, which serum cholesterol and triglyceride values does the nurse recommend as desirable?
A) Total cholesterol <200 mg/dL, LDL 100-129 mg/dL, triglycerides <150 mg/dL B) Total cholesterol 200-239 mg/dL, LDL 130-159 mg/dL, triglycerides 150-199 mg/dL C) Total cholesterol >240, LDL 160-189 mg/dL, triglycerides 200-499 mg/dL D) LDL >190 mg/dL, triglycerides >500 mg/dL
One of the reasons to use beta blockers for MI patients is to:
1. reduce the oxygen supply. 2. increase the heart rate to provide better oxygen supply. 3. decrease recurrent ischemia. 4. increase cardiac contractility to increase oxygen supply.
Which of the following best describes a condition in which there is decreased oxygen in the tissues?
A. Acidosis B. Hypoxemia C. Hypoxia
A nurse administers naloxone (Narcan) to a postoperative patient experiencing respiratory sedation. What undesirable effect would the nurse anticipate after giving this medication?
A) Drowsiness B) Tics and tremors C) Increased pain D) Nausea and vomiting