A client is to receive one liter of normal saline intravenously over six hours. The tubing delivers 15 drops per milliliter.
How many drops per minute should a nurse regulate the infusion to deliver?
42.
84.
100.
166.
The Correct Answer is B
To explain why, we need to use the formula for calculating the drip rate in drops per minute (dpm):
Volume of IV fluid (mL) x Drop Factor (drops/mL) / Time to run (h) x 60 (min/h) = Drip Rate (dpm)
In this question, the volume of IV fluid is one liter, which is equivalent to 1000 mL. The drop factor is 15 drops per mL, as given by the tubing.
The time to run is six hours, as ordered by the physician. Plugging these values into the formula, we get:
1000 mL x 15 drops/mL / 6 h x 60 min/h = 84 dpm
Therefore, the nurse should regulate the infusion to deliver 84 drops per minute.
Choice A is wrong because it gives a drip rate of 42 drops per minute, which is half of the correct answer.
This would result in delivering only 500 mL of normal saline in six hours, instead of one liter.
Choice C is wrong because it gives a drip rate of 100 drops per minute, which is more than the correct answer.
This would result in delivering 1.43 liters of normal saline in six hours, instead of one liter.
Choice D is wrong because it gives a drip rate of 166 drops per minute, which is almost double the correct answer.
This would result in delivering 1.99 liters of normal saline in six hours, instead of one liter.
Normal saline is a solution of 0.9% sodium chloride in water, which has the same osmolarity as blood plasma.
It is used to treat dehydration, shock, blood loss, and other conditions that require fluid replacement.
The normal range of sodium in blood is 135-145 mEq/L.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
The first observation the nurse should perform for a client who is receiving from the post anesthesia unit after a colon resection is to assess the patency of the airway and respiratory function.
This is because the airway is the most vital for the survival of the client and any compromise can lead to hypoxia and death.
The nurse should then take vital signs, check the wound dressing, and assess the foley catheter drainage.
Choice A is wrong because the client’s wound dressing is not as important as the airway and can be checked later.
Choice B is wrong because the client’s level of consciousness may be affected by the anesthesia and is not a priority over the airway.
Choice D is wrong because the client’s foley catheter drainage is not a critical observation and can be monitored later.
Normal ranges for respiratory rate are 12 to 20 breaths per minute for adults, oxygen saturation is 95% to 100%, and blood pressure is 120/80 mmHg for healthy individuals.
Correct Answer is B
Explanation
This is the priority nursing diagnosis for a client who has had vomiting and diarrhea for the past three days because it poses the greatest threat to the client’s health and well-
being. Fluid loss can lead to hypovolemia, hypotension, shock, electrolyte imbalance, and renal failure.
Choice A is wrong because fatigue is a subjective symptom that may or may not be related to fluid loss.
It is not a priority over fluid volume deficit.
Choice C is wrong because impaired skin integrity is a potential problem that may occur due to irritation from vomiting and diarrhea, but it is not a priority over fluid volume deficit.
Choice D is wrong because imbalanced nutrition is a potential problem that may occur due to vomiting, but it is not a priority over fluid volume deficit.
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