The client is scheduled to receive 30 grams of lactulose orally every 12 hours. An oral solution containing 5 g/10 mL is available. How many mL should be poured into the medication cup to administer the required dose?
The Correct Answer is ["60"]
- Step 1: Identify the required dose in grams. The client is scheduled to receive 30 grams of lactulose.
- Step 2: Identify the concentration of the available solution. The available solution contains 5 grams of lactulose per 10 mL.
- Step 3: Calculate the volume of solution needed to deliver the required dose. We can set up a proportion to solve for this:
- 5 grams is to 10 mL as 30 grams is to X mL.
- In other words, 5 g : 10 mL = 30 g : X mL.
- Step 4: Solve for X using cross-multiplication and division:
- Cross-multiplication gives us: 5 g × X mL = 30 g × 10 mL.
- Simplifying this gives us: 5X = 300.
- Dividing both sides by 5 gives us: X = 300 ÷ 5.
- Calculating the division gives us: X = 60.
60 mL of the lactulose solution should be poured into the medication cup to administer the required dose of 30 grams.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A: Lactated Ringer’s
Lactated Ringer’s solution is an isotonic crystalloid that contains electrolytes similar to those found in blood plasma. While it is commonly used for fluid resuscitation, it does not provide a significant source of calories and therefore is not the best option to temporarily replace TPN.
Choice B: 0.9% sodium chloride
0.9% sodium chloride, also known as normal saline, is an isotonic solution that is used to expand volume and correct electrolyte imbalances. Like Lactated Ringer’s, it does not contain a significant amount of calories and is not suitable as a temporary replacement for TPN.
Choice C: 3% sodium chloride
3% sodium chloride is a hypertonic saline solution used in controlled settings to treat specific conditions such as hyponatremia. Due to its high concentration of sodium, it is not appropriate for routine fluid replacement and does not provide calories.
Choice D: Dextrose 10% in water
D10W is the preferred choice in this scenario because it provides a source of glucose, which can help maintain blood glucose levels when TPN is not available. It is important to monitor the patient’s blood glucose levels while infusing D10W to ensure they remain within a safe range. When a TPN container is delayed, Dextrose 10% in water is the most appropriate temporary solution to infuse until the next container becomes available, as it provides necessary calories in the form of glucose to the patient.
Correct Answer is A
Explanation
Choice A reason:Providing oral care every 4 hours and as needed is an evidence-based practice to lower the risk of ventilator-associated pneumonia by minimizing the buildup of bacteria in the mouth³.
Choice B reason:Positioning the head of the client's bed in the flat position is not recommended as it can increase the risk of aspiration; elevating the head of the bed to 30° to 45° is the standard practice.
Choice C reason:Turning the client every 4 hours is important for preventing pressure ulcers and improving lung function but is not the primary action for reducing pneumonia risk³.
Choice D reason:Providing humidity helps to maintain mucous membrane integrity but must be carefully managed to prevent bacterial growth and is not the primary action for reducing pneumonia risk³.
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