Which of the following metals is an example of a trace element?
A. Potassium
B. Cobalt
C. Calcium
D. Magnesium
B
You might also like to view...
Which of the following statements about the ventilation/perfusion (V/Q) ratio in a healthy person is true?
A) Blood flow and amount of ventilation are equal throughout the lungs. B) The upper portion of the lungs has more ventilation than blood flow. C) Amount of blood is greater than amount of oxygen in the lungs. D) The lower portion of the lungs has more oxygen than perfusion.
The rule of palm is BEST used when:
A) third-degree burns are present. B) body surface area is large. C) body surface area is smaller. D) superficial burns are present.
The second semester of a pregnancy sees rapid growth in the fetus and the first signs of life, fetal movements called ____.
A. presentation B. acceleration C. quickening D. advancement
The AV blocks with a constant PR interval are
A) first-degree AV block and Mobitz II second-degree AV block. B) first-degree AV block and third-degree AV block. C) Wenckebach and third-degree AV block. D) first-degree AV block and Wenckebach.