A client is to receive 250,000 units of benzathine penicillin.
G. The medication is available in a vial containing 300,000 units per milliliter. How many milliliters should a nurse administer?
0.4.
0.8.
1.2.
1.6.
The Correct Answer is B
0.8.
To find the answer, you need to use the formula: Dose ordered / Dose available = Volume to administer
In this case, the dose ordered is 250,000 units and the dose available is 300,000 units/mL. So, you need to divide 250,000 by 300,000 and get 0.8333.
Then, you need to round it to one decimal place and get 0.8 mL. Choice A is wrong because it is too low.
If you administer 0.4 mL, you will give only 120,000 units of penicillin G benzathine, which is half of the prescribed dose.
Choice C is wrong because it is too high.
If you administer 1.2 mL, you will give 360,000 units of penicillin G benzathine, which is 44% more than the prescribed dose.
Choice D is wrong because it is also too high.
If you administer 1.6 mL, you will give 480,000 units of penicillin G benzathine, which is almost double the prescribed dose.
The normal range for penicillin G benzathine dosage depends on the type and severity of infection, but it is usually between 50,000 and 2.4 million units per injection.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Heat application increases blood flow and reduces muscle spasms, which can help relieve pain and promote healing. However, heat should not be applied for longer than 30 minutes at a time, as it can cause tissue damage and inflammation.
Choice A is wrong because maximum benefits do not occur within the first five minutes.
It takes time for heat to penetrate the tissues and cause vasodilation.
Choice C is wrong because the heat should not be left in place for at least one hour to be effective.
This can lead to burns, increased edema, and decreased blood flow.
Choice D is wrong because heat can not be left in place for as long as 12 hours without harmful effects.
This can cause severe tissue damage, infection, and necrosis.
Normal ranges for heat application are between 104°F and 113°F (40°C and 45°C).
The temperature should be checked frequently and adjusted according to the patient’s comfort and tolerance.
The skin should also be inspected for signs of erythema, blisters, or burns.
Correct Answer is ["A","D","E"]
Explanation
These choices validate the client with acute pain because they are signs of a sympathetic nervous system response to pain. Acute pain is a sudden and usually sharp sensation that indicates tissue damage or injury.
Choice B is wrong because dilated pupils are not a sign of acute pain. Pupils may dilate in response to fear, excitement, or drugs.
Choice C is wrong because constricted pupils are not a sign of acute pain. Pupils may constrict in response to bright light, drugs, or brain damage.
Choice F is wrong because decreased respirations are not a sign of acute pain. Respirations may decrease in response to relaxation, drugs, or respiratory depression.
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