A nurse is preparing to administer dopamine hydrochloride 4 mcg/kg/min via continuous infusion.
Available is dopamine hydrochloride in a solution of 800 mg in a 250 mL bag.
The client weighs 80 kg. The nurse should set the IV infusion to deliver how many mL/hr? (Round the answer to the nearest whole number.
Use a leading zero if it applies.)
4 mL/hr.
5 mL/hr.
6 mL/hr.
7 mL/hr.
The Correct Answer is C
Step 1: Convert the dopamine hydrochloride dose from mcg to mg. We know that 1 mg = 1000 mcg. So, 4 mcg = 0.004 mg.
Step 2: Calculate the total amount of dopamine hydrochloride the client needs per minute. We know that the client weighs 80 kg and the dose is 0.004 mg/kg/min. So, 0.004 mg/kg/min × 80 kg = 0.32 mg/min.
Step 3: Convert the total amount of dopamine hydrochloride the client needs per minute to an hourly rate. We know that 1 hour = 60 minutes. So, 0.32 mg/min × 60 min/hr = 19.2 mg/hr.
Step 4: Calculate the volume of the solution that contains 19.2 mg of dopamine hydrochloride. We know that the solution contains 800 mg in 250 mL. So, (19.2 mg ÷ 800 mg) × 250 mL = 6 mL.
Therefore, the nurse should set the IV infusion to deliver 6 mL/hr (rounded to the nearest whole number).
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The correct answer is choiceA. Lift the penis so that it is perpendicular to the client’s body.
Choice A rationale:
Lifting the penis so that it is perpendicular to the client’s body straightens the urethra, making it easier to insert the catheter without causing trauma.
Choice B rationale:
While cleansing the tip of the penis in a circular motion is important for maintaining aseptic technique, it is not the specific action that facilitates the insertion of the catheter.
Choice C rationale:
Picking up the catheter 13 cm (5 in) from its tip is not a standard practice.The nurse should hold the catheter closer to the tip to maintain control and ensure accurate insertion.
Choice D rationale:
Inflating the catheter balloon before insertion can cause trauma to the urethra and is not recommended.The balloon should only be inflated once the catheter is correctly positioned in the bladder.
Correct Answer is D
Explanation
The correct answer is D. Contractions.
Choice A Reason: Hypertension Hypertension in pregnancy is a condition that can occur independently of an amniocentesis and is typically monitored throughout the pregnancy. It is characterized by a sustained high blood pressure of 140/90 mmHg or higher. While hypertension is a concern in pregnancy, it is not a direct complication of amniocentesis. Normal ranges for blood pressure in the third trimester are 101.6 to 143.5 mmHg systolic and 62.4 to 94.7 mmHg diastolic.
Choice B Reason: Vomiting Vomiting is not a typical complication following an amniocentesis. It may be associated with other conditions during pregnancy such as hyperemesis gravidarum or gastrointestinal disturbances but is not directly related to the procedure of amniocentesis.
Choice C Reason: Epigastric Pain Epigastric pain is typically associated with conditions like preeclampsia or other gastrointestinal issues in pregnancy, not with amniocentesis. It is characterized by pain in the upper abdomen and is not a common complication post-amniocentesis.
Choice D Reason: Contractions After an amniocentesis, especially at 33 weeks of gestation, monitoring for contractions is crucial because they can indicate preterm labor, which is a known risk associated with the procedure. The normal range for contractions would be none to infrequent Braxton-Hicks contractions, which are not regular and do not signify labor.
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