A nurse is preparing to administer potassium chloride 20 mEq. The amount available is potassium chloride liquid 40 mEq/15 mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["7.5"]
We can calculate the volume of potassium chloride solution to administer using the following steps:
Identify the prescribed dose: The nurse needs to administer 20 mEq of potassium chloride.
Identify the concentration of available solution: The potassium chloride liquid is available in a concentration of 40 mEq/15 mL. This means there are 40 milliequivalents (mEq) of potassium chloride in every 15 milliliters (mL) of the solution.
Set up a proportion to find the volume needed:
Desired dose (mEq) : Volume to administer (mL) = Concentration (mEq/mL)
Plug in the values:
20 mEq : Volume to administer (mL) = 40 mEq/15 mL
Solve for the volume:
To isolate the volume (mL), multiply both sides of the proportion by the volume unit (mL) and divide by the dose (mEq).
Volume to administer (mL) = (20 mEq) x (mL) / (40 mEq/15 mL)
We can simplify the calculation before dividing:
Volume to administer (mL) = (20 mEq x 15 mL) / 40 mEq
Volume to administer (mL) = 300 mL / 40 mEq
Volume to administer (mL) = 7.5 mL (round to one decimal place)
Therefore, the nurse should administer 7.5 mL of the potassium chloride solution.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
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Correct Answer is B
Explanation
A) Have suction equipment at the bedside:
Having suction equipment at the bedside is not specifically related to the administration of clopidogrel. It may be necessary for clients with respiratory or airway concerns but is not directly associated with this medication.
B) Monitor the client for black, tarry stools:
Clopidogrel is an antiplatelet medication that can increase the risk of bleeding, including gastrointestinal bleeding. Monitoring for black, tarry stools is essential as it can indicate upper gastrointestinal bleeding, which is a potential adverse effect of clopidogrel therapy.
C) Initiate contact precautions:
Contact precautions are not required for clients taking clopidogrel. Clopidogrel does not pose an infection risk that would necessitate contact precautions.
D) Administer the medication with each meal:
Clopidogrel is typically administered once daily, regardless of meals. There is no specific requirement to administer it with each meal.
Correct Answer is A
Explanation
A) The client should use an electric razor while on this medication:
Using an electric razor is recommended for clients taking warfarin because it reduces the risk of cuts and bleeding, which can be difficult to control due to the anticoagulant effects of warfarin. This advice helps minimize the risk of injury and excessive bleeding.
B) Warfarin increases the risk for deep vein thrombosis:
Warfarin is an anticoagulant that is actually used to prevent and treat deep vein thrombosis (DVT) and other thromboembolic conditions. This statement is incorrect because warfarin reduces the risk of clot formation, rather than increasing it.
C) Nose bleeds are common during initial treatment:
While nosebleeds can occur as a side effect of warfarin due to its anticoagulant properties, they are not considered common or normal. Persistent or frequent nosebleeds should be reported to a healthcare provider, as they may indicate that the dosage needs adjustment.
D) If he misses a dose, he should double the dose at the next scheduled time:
Doubling the dose of warfarin if a dose is missed is not recommended. Doing so can significantly increase the risk of bleeding. The correct action for a missed dose is to take it as soon as remembered, but if it is close to the time for the next dose, skip the missed dose and continue with the regular schedule. Clients should follow specific instructions from their healthcare provider regarding missed doses.
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