A nurse is preparing to administer lactated Ringer's at 100 mL/hr. The drop factor of the manual IV tubing is 15 gtt/mL. The nurse should set the manual IV infusion to deliver how many gtt/min? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["25"]
Finding out how many milliliters are infused per minute: 1 hr/100 mL×1 hr/60 min=100 mL/60 min
Finding the drops per minute, we multiply the mL/min by the drop factor: 100/60 x 15/1 = 1500/60 gtt/min =25 gtt/min
So, the nurse should set the manual IV infusion to deliver 25 gtt/min.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
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Correct Answer is A
Explanation
A. Hypotension following verapamil, a calcium channel blocker, can be managed with IV fluid boluses to support blood pressure.
B. Diphenhydramine treats allergic reactions, not hypotension.
C. Oxygen may be given, but fluids are the priority to restore BP.
D. Positioning legs may help slightly, but fluids directly address the cause.
Correct Answer is D
Explanation
A. Increasing dietary intake of vitamin K would decrease the effectiveness of warfarin, as vitamin K is involved in clotting factor synthesis.
B. St. John's wort decreases the effects of warfarin, so it should be avoided.
C. Protamine sulfate is the antidote for heparin, not warfarin. The antidote for warfarin overdose is vitamin K.
D. Monitoring prothrombin time (PT) and INR is essential to assess the effectiveness and safety of warfarin therapy.
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