Containers used for the disposal of items contaminated with blood or body fluids are typically:
A. red in color.
B. blue in color.
C. green in color.
D. black and white in color.
A
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A 41-year-old man complains of chest heaviness and mild shortness of breath that began about 2 hours ago. He is conscious and alert. As you are assessing him, he tells you that he has high blood pressure for which he takes Clonidine. His blood pressure is 160/90 mm Hg, heart rate is 140 beats/min and regular, and respirations are 22 breaths/min and somewhat labored. The cardiac monitor displays a narrow complex tachycardia in lead II. Which of the following interventions is NOT indicated for this patient?
A) Aspirin B) Adenosine C) IV access D) 12-Lead ECG
What changes would be expected in the ventilation-perfusion ratio in the presence of excessive blood loss?
a. The ventilation-perfusion ratio initially decreases will increase then will decrease dramatically b. The ventilation-perfusion ratio will increase. c. The ventilation-perfusion ratio will decrease d. The ventilation-perfusion ratio will remain constant
The first positive wave in a normal QRS complex is the R wave, which represents conduction of the electrical impulse:
A. through the right ventricle. B. to the right atrium. C. to the left ventricle. D. through the left atrium.
Residents with kidney or cardiovascular diseases are usually ordered diets low in:
A. fat. B. vitamins. C. sodium. D. calcium.