A nurse is preparing to administer potassium chloride 30 mEq PO daily. The amount available is potassium chloride 20 mEq/15mL. How many mL should the nurse administer?
(Round the answer to the nearest tenth/whole number. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["23"]
To determine how many milliliters (mL) of potassium chloride the nurse should administer to provide 30 mEq, we can set up a proportion:
20 mEq is contained in 15 mL. So, to find out how many mL contain 30 mEq, we can set up the proportion:
20 mEq:15 mL=30 mEq:𝑥 mL20mEq:15mL=30mEq:xmL
Cross multiply:
20×𝑥=15×3020×x=15×30
20𝑥=45020x=450
Now, solve for 𝑥x:
𝑥=45020x=20450
𝑥=22.5x=22.5
So, the nurse should administer approximately 22.5 mL of potassium chloride.
Rounded to the nearest whole number, this would be 23 mL.
Therefore, the nurse should administer 23 mL of potassium chloride.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["7"]
Explanation
Dosage (mL) = Desired dose (mg) / Concentration (mg/mL)
Dosage (mL) = 350 mg / (250 mg/5 mL)
Dosage (mL) = 7 mL (rounded to nearest whole number)
Therefore, the nurse should administer 7 mL of amoxicillin suspension.
Correct Answer is B
Explanation
A. The client sprinkles flaxseeds on breakfast food every day. Flaxseeds contain omega-3 fatty acids, which can have antithrombotic effects. However, their impact on INR (International Normalized Ratio), the measure of warfarin's anticoagulant effect, is not well-established. While it's important to monitor the client's dietary intake of foods rich in vitamin K or those with potential antithrombotic effects, such as flaxseeds, this is not the priority finding among the options provided.
B. The client keeps a small supply of vitamin K tablets on hand for emergency use. This is the correct answer. Vitamin K is the antidote for warfarin, and the client should not keep a supply of vitamin K tablets on hand for emergency use. Warfarin's anticoagulant effect is carefully monitored through regular INR checks, and adjustments to the dosage are made accordingly. The presence of vitamin K tablets suggests a potential risk of self-adjusting warfarin dosage, which can lead to fluctuations in INR levels and increase the risk of thromboembolic or bleeding events.
C. The client uses garlic as a daily dietary supplement. Garlic is known to have potential antithrombotic effects and can interact with warfarin, increasing the risk of bleeding. However, its impact on INR levels may vary among individuals. While it's important to consider the use of garlic as a dietary supplement, it is not the priority finding among the options provided.
D. The client consistently eats fish for dinner twice weekly. Fish consumption, particularly those rich in omega-3 fatty acids such as salmon or mackerel, can have antithrombotic effects and may affect INR levels. However, the client's consistent fish consumption is less likely to have a significant impact on warfarin therapy compared to the potential self-administration of vitamin K tablets.
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