The physician orders mefoxin (Cefoxitin) 800 mg IV Q 8 hours. To reconstitute the medications the instructions state to add 7.5 mL of NSS for a total of 8 mL with each mL containing 250 mg. How many millilitres will be given?
The Correct Answer is ["3.2"]
The correct answer is 3.2 mL
Explanation:
Step 1 is identify the total dose ordered
800 mg
Step 2 is identify the concentration after reconstitution
Each mL contains 250 mg
Step 3 is divide the total dose by the concentration per mL
(800 ÷ 250) = 3.2
Result = 3.2 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["3.2"]
Explanation
The correct answer is 3.2 mL
Explanation:
Step 1 is identify the total dose ordered
800 mg
Step 2 is identify the concentration after reconstitution
Each mL contains 250 mg
Step 3 is divide the total dose by the concentration per mL
(800 ÷ 250) = 3.2
Result = 3.2 mL
Correct Answer is B
Explanation
Choice A reason: Hypoglycemia involves low blood glucose, causing symptoms like shakiness or confusion, not muscle weakness or arrhythmias. Hypertonic glucose and insulin would worsen hypoglycemia by increasing glucose uptake, and sodium bicarbonate is irrelevant. These symptoms and treatments align with hyperkalemia, not low glucose levels, in renal failure.
Choice B reason: Hyperkalemia, common in acute renal failure due to impaired potassium excretion, causes muscle weakness and cardiac arrhythmias by altering membrane potentials. Hypertonic glucose and insulin drive potassium into cells, while sodium bicarbonate corrects acidosis, stabilizing cardiac membranes, making this the targeted complication for the prescribed treatment.
Choice C reason: Hypernatremia (high sodium) causes neurological symptoms like confusion, not muscle weakness or arrhythmias. The prescribed treatments do not address sodium levels; insulin and glucose manage potassium, and bicarbonate corrects acidosis. Hypernatremia is not a primary concern in acute renal failure with these symptoms.
Choice D reason: Hypokalemia (low potassium) causes muscle weakness and arrhythmias but is rare in acute renal failure, where hyperkalemia is typical due to reduced excretion. The prescribed treatments aim to lower potassium, not increase it, making hypokalemia an incorrect target for this therapy in the context of renal failure.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.
