The antidysrhythmic that is a calcium channel blocker is:
A) adenosine
B) atropine
C) lidocaine
D) verapamil
Answer: D
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A patient who requires ongoing home medical oxygen complains of generalized weakness. Assessment indicates a patent airway and adequate respirations. His radial pulse is strong and regular, and his skin is warm and dry. Vital signs are pulse, 92 beats/min; respirations, 18 breaths/min; blood pressure, 156/88 mmHg; and SpO2, 95%. The patient is currently on 2 lpm of oxygen via an oxygen concentrator positioned bedside. What would be appropriate care in the management of this patient?
A) Continue oxygen administration at 2 lpm via nasal cannula during transport B) Place the patient on high-concentration oxygen with a nonrebreather mask, with the oxygen provided by your portable tank C) Discontinue oxygen therapy since the SpO2 is greater than 94% and initiate transport D) Administer 4 to 6 lpm oxygen via a simple face mask during transport
A patient sample has normal platelet aggregation patterns for all agonists except that no reaction occurs with ristocetin. Ristocetin agglutination is not corrected with exogenous VWF. What condition is most likely?
a. VWD b. Storage pool disorder c. Bernard-Soulier syndrome d. Aspirin use
What is the optimal percentage of body fat for a 55-year-old male?
A. 12% to 19% B. 18% to 30% C. 10% to 14% D. 16% to 25% E. 14% to 23%
Three-dimensional ultrasound imaging in real time is referred to as
a. phased 3-D ultrasound. b. convex 3-D ultrasound. c. duplex scanning. d. 4-D ultrasound.