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 ["B","C","E"]
Explanation
These interventions are based on the principles of sleep hygiene and cognitive behavioral therapy for insomnia (CBT-I), which are evidence-based strategies to promote better sleep.
Choice A is wrong because alcohol can disrupt sleep quality and cause frequent awakenings during the night. It can also interfere with the normal sleep cycle and reduce REM sleep.
Choice D is wrong because reading a book 30 minutes before bedtime can be stimulating and make it harder to fall asleep. It can also violate the stimulus control therapy, which aims to associate the bed only with sleep and sex and avoid any other activities that may keep the mind alert.
Some additional sentences are:
- Normal ranges for sleep vary depending on age, lifestyle, and individual factors, but generally adul,ts need about 7 to 9 hours of sleep per night.
- Insomnia is a common sleep disorder that affects about 10% to 30% of adults and can have negative impacts on physical and mental health, as well as quality of life.
- If insomnia persists despite following these interventions, it is advisable to consult a doctor or a sleep specialist for further evaluation and treatment options.
Correct Answer is D
Explanation
This is because diminished breath sounds indicate poor oxygenation and ventilation, which can lead to respiratory failure and hypoxia. The healthcare provider should be notified immediately to assess the client and provide appropriate interventions.
Choice A is wrong because joint pain is a common side effect of some arthritis medications, such as nonsteroidal anti-inflammatory drugs (NSAIDs). It does not require immediate attention unless it is severe or accompanied by other symptoms, such as swelling, redness, or fever.
Choice B is wrong because decreased appetite and difficulty sleeping are normal responses to grief and loss. They do not indicate a medical emergency, but rather a need for emotional support and counseling.
Choice C is wrong because a weight loss of two pounds in a client admitted with congestive heart failure is a positive sign that indicates fluid removal and improved cardiac function. It does not require immediate reporting, but rather ongoing monitoring and evaluation.
Normal ranges for vital signs are as follows :
- Blood pressure: 90/60 mm Hg to 120/80 mm Hg
- Breathing: 12 to 18 breaths per minute
- Pulse: 60 to 100 beats per minute
- Temperature: 97.8°F to 99.1°F (36.5°C to 37.3°C); average 98.6°F (37°C)
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