A patient is to receive a continuous infusion of Diltiazem at 2.5 mg hr for Atrial fibrillation, The medication is supplied 125 mg of Diltlazem in 125 mL of IV fluid. At what rate should the nurse set the IV pump? (round to the nearest tenth)
The Correct Answer is ["2.5"]
Ordered Dose: The doctor has prescribed Diltiazem at a rate of 2.5 mg per hour. This means the patient needs to receive 2.5 milligrams of Diltiazem every hour.
Medication Concentration: The medication is supplied as 125 mg of Diltiazem in 125 mL of fluid. This translates to a concentration of 1 mg of Diltiazem per 1 mL of solution.
Since the medication concentration is 1 mg/mL, delivering 2.5 mg of Diltiazem per hour requires infusing 2.5 mL of the solution per hour.
Therefore, the nurse should set the IV pump to deliver 2.5 mL/hr of the Diltiazem solution.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A) Establish IV access, apply 2L O2 via nasal cannula, and notify provider:
While establishing IV access and providing oxygen are important aspects of managing many emergencies, this patient's symptoms suggest the presence of autonomic dysreflexia rather than a primary respiratory or circulatory issue. In autonomic dysreflexia, the primary concern is to remove the noxious stimulus (such as a full bladder, bowel impaction, or tight clothing) that is causing the severe hypertension and bradycardia.
B) Assess below injury for noxious stimuli, anticipate order for hypertensive medication:
The patient’s symptoms are consistent with autonomic dysreflexia, a serious condition that occurs in individuals with a spinal cord injury at or above the T6 level. The body’s autonomic nervous system overreacts to noxious stimuli (such as a distended bladder, bowel impaction, or skin irritation) below the level of injury, leading to a severe hypertensive crisis, bradycardia, and sympathetic hyperactivity. The nurse should immediately assess for and relieve any noxious stimuli below the injury level (e.g., checking for a full bladder, constipation, or tight clothing) and anticipate an order for antihypertensive medications if the blood pressure remains elevated.
C) Administer acetaminophen and initiate intravenous (IV) fluids, anticipate order for atropine:
While pain and discomfort (which can exacerbate autonomic dysreflexia) may need to be managed, acetaminophen is not the priority in this case. The priority is addressing the underlying cause of autonomic dysreflexia, such as relieving noxious stimuli. Additionally, atropine is used for bradycardia, but in autonomic dysreflexia, the bradycardia is secondary to the hypertensive crisis and usually resolves once the noxious stimulus is removed.
D) Lower the head of the bed and apply a cool compress to the forehead:
Although lowering the head of the bed may help reduce intracranial pressure and applying a cool compress may provide comfort, these interventions do not address the underlying cause of the autonomic dysreflexia.
Correct Answer is D
Explanation
A) Measure heart chamber pressures to assess for heart failure:
Measuring heart chamber pressures is an important diagnostic tool in assessing heart failure, but it is not the primary goal in the case of a STEMI (ST-Elevation Myocardial Infarction). In STEMI, the primary goal is to identify and treat the blockage in the coronary arteries that is causing the heart attack.
B) Determine cardiac output during the procedure:
Cardiac output is a useful measurement for assessing heart function, but it is not the main focus during the treatment of STEMI. While monitoring cardiac output may be part of the overall care, the urgent priority in STEMI management is to restore blood flow to the affected myocardial tissue as quickly as possible to minimize damage, not to measure cardiac output.
C) Evaluate the extent of the occlusion of the coronary arteries involved:
While evaluating the extent of coronary artery occlusion is part of the process during a cardiac catheterization, the immediate priority for a patient with STEMI is to treat the blockage, not just evaluate it. While the angiogram will reveal the blockage, the treatment goal is to restore perfusion to the affected area of the heart through procedures such as balloon angioplasty or stent placement.
D) Prevent extensive myocardial damage:
This is the correct answer. The main goal of treatment for STEMI is to prevent extensive myocardial damage. In a STEMI, the coronary artery is blocked, depriving the heart muscle of oxygen, which can cause significant damage or death of the myocardial tissue. The most effective way to limit the extent of damage is to restore blood flow as quickly as possible, often through emergent procedures like percutaneous coronary intervention (PCI) or fibrinolytic therapy.
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