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 ["C","D","E"]
Explanation
Choice A rationale
Chills and fever are not typically associated with preeclampsia. They are more commonly seen in infections.
Choice B rationale
Lack of appetite is a non-specific symptom and can be associated with many conditions, but it is not a key indicator of preeclampsia.
Choice C rationale
Swollen hands can be a symptom of preeclampsia. This condition can cause sudden weight gain and swelling (edema), particularly in your face and hands.
Choice D rationale
Headaches are a common symptom of preeclampsia. They are often severe and may be accompanied by changes in vision.
Choice E rationale
Blurred vision is a symptom of preeclampsia. Other vision changes, such as sensitivity to light or temporary loss of vision, can also occur.
Choice F rationale
Frequent urination is not typically associated with preeclampsia. It is a common symptom in early and late pregnancy due to the growing uterus pressing on the bladder.
Correct Answer is []
Explanation
Correct Actions:
Administer calcium as prescribed - Administering calcium (usually IV calcium gluconate) corrects the calcium deficiency, stabilizes nerve and muscle function, and helps stop or prevent further seizures.
Monitor respiratory status - Monitoring respiratory rate, effort, and oxygen saturation ensures early detection of hypoventilation, apnea, or oxygen desaturation.Maintaining airway and oxygenation is critical for safety and preventing hypoxia.
Correct Condition:
Hypocalcemia, or low calcium levels in the blood, can cause seizures in infants. Phenytoin, the medication given to the baby in the ambulance, is used to control seizures. Therefore, hypocalcemia could be the condition the infant is experiencing.
Correct Parameters to monitor:
Monitoring the respiratory rate is an important part of assessing any patient’s condition, especially an infant who has had a seizure.
Monitor serum calcium levels - Maintaining calcium within the normal neonatal range prevents recurrent seizures, cardiac arrhythmias, or neuromuscular irritability.
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.