In sinus bradycardia, the:
A) heart rate is less than 70 beats/min.
B) pacemaker site is the SA node.
C) QRS complexes are often wide.
D) P waves are consistently upright.
Answer: B) pacemaker site is the SA node.
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A coagulation screen is ordered on a patient who is a difficult draw. A 5-mL blue top tube is drawn but fills only halfway. What would be the appropriate next step?
a. Draw another half-filled 5-mL blue top tube, and combine the two tubes. b. Discard the first tube, and attempt to draw a filled 5-mL blue top tube. c. Draw a red top tube, and add blood to completely fill the blue top tube. d. Send the half-filled blue top tube to the coagulation laboratory.
The rhythm that occurs when the SA node has generated an impulse that follows the normal pathway through the electrical conduction system is defined as normal sinus:
A. rhythm. B. bradycardia. C. tachycardia. D. arrhythmia.
The quality of blood specimens can be affected by:
a. timing of transport. b. method of transport. c. centrifugation method. d. all of the above.
Which of the following is the specific diagnostic test for depression?
A. Red blood cell count B. X-ray of the brain C. Urinalysis D. Metabolic panel E. There is no specific diagnostic test