which of the following vitamin increase the retention of calcium and phosphorous ions in the blood

which of the following vitamin increase the retention of calcium and phosphorous ions in the blood:
A. Vit A
B. Vit B12
C. Vit. D
D. Vit C

the main effect of excess calcium on the myocardium

the main effect of excess calcium on the myocardium is:
A. spastic contraction
B. cardiac flaccidity
C. tetany
D. bradycardia

when administering heparin, the substance the nurse would keep available as the antidote

when administering heparin , the substance the nurse would keep available as the antidote is:
A. magnesium sulphate
B. protamine sulphate
C. calcium gloconate
D. vitamin k

a patient develops a small decubitus ulcer on the sacral area. the nurse should plan to deal with this problem

a patient develops a small decubitus ulcer on the sacral area . the nurse should plan to deal with this problem by:
A. keeping the area dry
B. applying moist dressing
C. providing a low caloric diet
D. keep the patient on the right side

the nurse empties a portable wound suction device when it is only half full

the nurse empties a portable wound suction device when it is only half full because:
A. it is easier and faster to empty the unit when it is only half full
B. this facilitates a more accurate measurement of drainage output.
C. their negative pressure in the unit lessens as fluid accumulates in it , interfering with further drainage
D. as fluid collects in the unit it exerts positive pressure , forcing drainage back up the tubing and into the wound.
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