A client weighing 198 lbs is prescribed Dopamine hydrochloride IV at 2 mcg/kg/minute to promote renal perfusion.
The pharmacy provides a pre-mixed bag of dopamine containing 400 mg in 250 mL dextrose 5% in water (D5W). An IV pump that provides a precision infusion rate to a tenth of a mL is available.
How many mL/hour should the IV pump be set to deliver? (Enter numeric value only. If rounding is required, round to the nearest tenth.)
The Correct Answer is ["6.8"]
Step 1: Convert the client’s weight from lbs to kg. 1 kg is approximately 2.2 lbs. So, 198 lbs ÷
2.2 = 90 kg (rounded to the nearest whole number).
Step 2: Calculate the total mcg of Dopamine needed per minute. The prescription is for 2 mcg/kg/minute. So, 90 kg × 2 mcg/kg/minute = 180 mcg/minute.
Step 3: Convert the total mcg of Dopamine in the bag to mcg/mL. The bag contains 400 mg of Dopamine in 250 mL. 1 mg is equal to 1000 mcg. So, 400 mg × 1000 = 400,000 mcg. Therefore, the concentration is 400,000 mcg ÷ 250 mL = 1600 mcg/mL.
Step 4: Calculate the mL of Dopamine needed per minute. So, 180 mcg/minute ÷ 1600 mcg/mL
= 0.1125 mL/minute.
Step 5: Convert mL/minute to mL/hour. There are 60 minutes in an hour. So, 0.1125 mL/minute × 60 = 6.75 mL/hour. The IV pump should be set to deliver 6.8 mL/hour (rounded to the nearest tenth).
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["B","C","D","E","F","G"]
Explanation
Choice A rationale
Lamb’s wool is typically used for padding to prevent pressure sores and does not directly relate to the administration of oxygen therapy. Therefore, it is not necessary when a patient is put on oxygen.
Choice B rationale
Sterile water is used in oxygen therapy to provide humidification, which prevents the drying and irritation of the respiratory mucosa. Therefore, it is necessary when a patient is put on oxygen.
Choice C rationale
Tape can be used to secure the oxygen delivery device, such as a nasal cannula, to the patient’s face. Therefore, it is necessary when a patient is put on oxygen.
Choice D rationale
A suction canister is used to collect respiratory secretions during suctioning procedures, which may be necessary for patients with excessive secretions or difficulty clearing secretions.
Therefore, it is necessary when a patient is put on oxygen.
Choice E rationale
A humidifier bottle is used in oxygen therapy to provide humidification, which prevents the drying and irritation of the respiratory mucosa. Therefore, it is necessary when a patient is put on oxygen.
Choice F rationale
A nasal cannula is a device used to deliver supplemental oxygen to a patient who needs oxygen therapy. Therefore, it is necessary when a patient is put on oxygen.
Choice G rationale
A flowmeter is used in oxygen therapy to control the rate of oxygen flow to the patient. Therefore, it is necessary when a patient is put on oxygen.
Correct Answer is C
Explanation
Choice A rationale
While obtaining a serum drug screen might be helpful in confirming the presence of benzodiazepines or other substances, it is not the most immediate concern in a client experiencing severe agitation and tremors due to withdrawal.
Choice B rationale
Naloxone is an opioid antagonist and would not be effective in managing withdrawal symptoms from benzodiazepines.
Choice C rationale
Seizure precautions should be initiated as withdrawal from benzodiazepines can lead to severe withdrawal symptoms, including seizures. Therefore, ensuring the safety of the client by initiating seizure precautions is the best initial nursing action.
Choice D rationale
While education is an important part of nursing care, in this situation, the client’s immediate physical needs take precedence.
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.