The physician orders an injection of dexamethasone (Decadron) 6mg IM for a patient.
The available stock is dexamethasone 4mg/1ml in a 5ml multidose vial.
How many mLs of this medication will the nurse prepare?
75 mLs
5 mLs
6 mLs
15 mLs
The Correct Answer is C
The correct answer is Choice C.
Let’s go through the calculation step by step:
Step 1: Identify the order and the available medication. The order is for dexamethasone (Decadron) 6mg IM. The available stock is dexamethasone 4mg/1ml in a 5ml multidose vial.
Step 2: Determine the amount of medication needed to fulfill the order. This is done by dividing the ordered amount by the concentration of the available medication.
So, we have:
Step 2 Calculation=Concentration of Available MedicationOrdered Amount Substituting the given values: Step 2 Calculation=4 mg/mL6 mg Step 3: Perform the calculation.
Step 3 Calculation=1.5 mL
So, the nurse will prepare 1.5 mL of this medication.
Now, let’s discuss the rationales for each choice:
Choice A rationale:
75 mLs is not the correct amount. This would be a significantly larger dose than ordered, which could lead to an overdose.
Choice B rationale:
5 mLs is not the correct amount. This would also be a larger dose than ordered, which could lead to an overdose.
Choice C rationale:
1.5 mLs is the correct amount. This is calculated by dividing the ordered dose (6 mg) by the concentration of the available medication (4 mg/mL).
Choice D rationale:
15 mLs is not the correct amount. This would be a significantly larger dose than ordered, which could lead to an overdose.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale:
Rifampin is an antibiotic used to treat or prevent tuberculosis (TB). However, the treatment with this medication typically lasts longer than one month. In fact, TB treatment usually involves taking several drugs for a long time.
Choice B rationale:
While it’s important to take some medications with meals to increase absorption or decrease stomach upset, rifampin should be taken at least 1 hour before or 2 hours after a meal. This helps to ensure optimal absorption of the medication.
Choice C rationale:
Insomnia is not typically listed as a common side effect of rifampin. The medication can cause a number of side effects, but these more commonly include things like upset stomach, loss of appetite, nausea, vomiting, diarrhea, and changes in behavior.
Choice D rationale:
One of the known side effects of rifampin is that it can cause a red-orange discoloration of body fluids, including urine, sweat, saliva, and tears. This can be alarming to patients if they are not forewarned, so it’s important for the nurse to provide this information during discharge instructions.
Correct Answer is A
Explanation
Choice A rationale:
Type 1 diabetes mellitus is a chronic medical condition that occurs when the pancreas, an organ in the abdomen, produces very little or no insulin. Insulin is a hormone that helps the body to use glucose for energy. Glucose is a sugar that comes, in large part, from foods we eat. Insulin allows glucose to enter cells in the body. Therefore, if a client with type 1 diabetes refuses breakfast and requests to sleep, it could lead to hypoglycemia, a condition characterized by abnormally low blood glucose levels. Hypoglycemia can cause symptoms such as weakness, sweating, confusion, and in severe cases, unconsciousness or seizures. It is a medical emergency and should be reported immediately.
Choice B rationale:
Trimming a toenail may seem like a simple task, but for a person with diabetes, it can lead to serious complications. Diabetes can cause nerve damage that leads to numbness in the feet, making it difficult for a person to feel a cut, blister, or sore. These injuries can become infected and lead to serious complications, such as the need for amputation. However, this situation is not as immediately life-threatening as hypoglycemia and does not need to be reported immediately.
Choice C rationale:
Dark yellow urine can be a sign of dehydration, which can be a concern for individuals with diabetes. However, it can also be a result of less serious causes such as certain medications, foods, or simply not drinking enough fluids. While it’s important for the AP to encourage the client to drink more fluids, this situation is not as immediately life-threatening as hypoglycemia.
Choice D rationale:
Dizziness when standing, also known as orthostatic hypotension, can be a side effect of some medications used to treat diabetes. It can also be a symptom of dehydration or other conditions. While it’s important for the AP to monitor the client’s symptoms and report any changes, this situation is not as immediately life-threatening as hypoglycemia
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