The healthcare provider prescribes magnesium sulfate 300 mg/hour IV. The IV bag is contains magnesium sulfate 4 grams in dextrose 5% in water (DW) 500 mL. How many mL/hour should the nurse set the infusion pump? (Enter numerical value only. If rounding is required, round to the nearest tenth.)

A. Request a prescription to change the route of administration and use the available heparin:
Low molecular weight heparin (LMWH) and unfractionated heparin (UFH) are not interchangeable. LMWH is usually administered subcutaneously, whereas UFH is administered intravenously for acute situations. Changing the route of administration without a new prescription would not be appropriate.

B. Advise the pharmacy of the need to deliver a vial of heparin to the nursing unit immediately:
Since the prescription is for intravenous heparin and the available syringes are of LMWH (which is not suitable for IV use), it is essential to contact the pharmacy to provide the correct formulation. Immediate action ensures that the client receives the correct medication promptly.

C. Calculate and administer the equivalent dose of the available low molecular weight heparin:
Calculating and administering LMWH instead of UFH is inappropriate because they are different types of heparin with different indications, dosing regimens, and routes of administration. Using LMWH for an IV prescription could result in ineffective treatment or complications.

D. Dilute the available heparin in 250 mL of normal saline solution prior to IV administration:
LMWH should not be diluted or used in place of UFH for IV administration. This action is incorrect because the available medication is not suitable for the prescribed route and dose. The proper medication needs to be obtained from the pharmacy.

A. Determine daily caffeine intake:
Caffeine can impact sleep, but the primary concern with dextroamphetamine-amphetamine extended-release tablets is their potential to cause insomnia as a side effect. Assessing caffeine intake is secondary but can be considered if other factors are ruled out.

B. Ask about the client's bedtime routine:
The bedtime routine may affect sleep quality, but it is less directly related to the medication's effects compared to the timing of the medication. This information is useful but not as crucial in this context.

C. Determine what time the dose is taken:
The timing of dextroamphetamine-amphetamine administration is crucial because taking the medication too late in the day can interfere with sleep. This medication is known to cause insomnia if taken too close to bedtime, so assessing the timing is most important to address the sleep difficulty.

D. Inquire about perceived anxiety:
Anxiety can affect sleep, but the primary issue with dextroamphetamine-amphetamine extended-release tablets is their known side effect of causing insomnia. Addressing the timing of the medication is more directly related to resolving sleep issues in this case.