A patient with neuroleptic malignant syndrome has been prescribed dantrolene 1.5 mg/kg IV. The patient weighs 132 pounds.
The label on the 250 mg vial reads, “Reconstitute with 5 mL sterile water for injection, USP. Reconstitution yields 50 mg/mL.”. How many mL should the nurse administer?
The Correct Answer is ["1.80"]
Step 1 is to convert the patient’s weight from pounds to kilograms since the dosage is prescribed in mg/kg. We know that 1 kg is approximately 2.20462 pounds. So, the patient’s weight in kilograms is 132 pounds ÷ 2.20462 = 59.87 kg.
Step 2 is to calculate the total dosage of dantrolene needed. The prescribed dosage is 1.5 mg/kg. So, the total dosage is 1.5 mg/kg × 59.87 kg = 89.81 mg.
Step 3 is to calculate the volume of reconstituted dantrolene solution needed to provide the total dosage. The reconstituted solution has a concentration of 50 mg/mL. So, the volume needed is 89.81 mg ÷ 50 mg/mL = 1.80 mL.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","B","C","F"]
Explanation
The correct answer is A. Ventilation, B. Neurological status, C. Exposure, F. Circulation.
Choice A: Ventilation Ventilation is a crucial part of the primary survey in trauma assessment. It involves assessing the patient’s respiratory rate and effort, use of accessory muscles, cyanosis, and chest wall movement. The normal respiratory rate for adults is between 12-20 breaths per minute.
Choice B: Neurological status Neurological status is another vital component of the primary survey. It often involves assessing the patient’s level of consciousness, often using tools like the Glasgow Coma Scale (GCS). The GCS score can range from 3 (completely unresponsive) to 15 (responsive).
Choice C: Exposure Exposure involves removing the patient’s clothing to check for any hidden injuries. It’s an essential step in trauma assessment, but there’s no “normal range” for this as it’s a process rather than a measurable variable.
Choice D: Current medications While knowing a patient’s current medications is important in managing their care, it’s not typically part of the primary survey in trauma assessment. This information is usually gathered during the secondary survey.
Choice E: Allergies Like current medications, information about allergies is also crucial in managing patient care, but it’s not part of the primary survey. This information is usually collected during the secondary survey.
Choice F: Circulation Circulation is a critical part of the primary survey. It involves checking the patient’s heart rate, blood pressure, capillary refill time, and looking for any signs of external bleeding. The normal resting heart rate can range between 60-99 beats per minute.
Correct Answer is B
Explanation
Choice A rationale
Gastric lavage is a procedure that involves the insertion of a tube into the stomach to remove its contents and is typically used in cases of poisoning or drug overdose. However, it should not be the first action taken. The type of chemical exposure needs to be determined first to guide appropriate treatment.
Choice B rationale
Determining the type of chemical exposure is crucial as it guides the subsequent steps in management. Different chemicals can have different effects on the body and require different treatments.
Choice C rationale
While assessing for altered sensorium is important in a child exposed to chemicals, it is not the first action. The nurse needs to identify the type of chemical the child was exposed to in order to anticipate potential complications and guide treatment.
Choice D rationale
Calling the poison control emergency number is an important step in managing a case of chemical exposure. However, having information about the type of chemical the child was exposed to can make this call more effective.
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.