A nurse is providing teaching for a client who has diabetes and a new prescription for insulin glargine. Which of the following instructions should the nurse provide regarding this type of insulin?

Choice A reason: Taking the bronchodilator inhaler first will help to open up the airways and make it easier for the corticosteroid inhaler to reach the lungs and reduce inflammation. This will improve the effectiveness and safety of the inhalers.

Choice B reason: Taking the corticosteroid inhaler first may not be as effective as taking the bronchodilator inhaler first, because the airways may be constricted and prevent the corticosteroid from reaching the lungs. This may reduce the anti-inflammatory effect of the corticosteroid and increase the risk of side effects.

Choice C reason: Taking these two drugs at least 2 hours apart is not necessary and may not be practical for the patient. The bronchodilator and the corticosteroid can be taken together, as long as the bronchodilator is taken first.

Choice D reason: It does matter which inhaler the patient uses first, because the order of the inhalers can affect their efficacy and safety. The patient should always use the bronchodilator inhaler first, followed by the corticosteroid inhaler.

The correct answer is c. 2,525 mL.

Choice A reason:

1,350 mL is calculated by considering only the lactated Ringer’s IV intake. The calculation is as follows:

• Lactated Ringer’s IV at 150 mL/hr for 9 hr: 150 mL/hr × 9 hr = 1,350 mL. This option does not include the intake from cefazolin, packed RBCs, sodium chloride boluses, or famotidine.

Choice B reason:

1,600 mL is not a correct calculation based on the given intake. This value does not accurately sum up any combination of the provided intake components.

Choice C reason:

2,525 mL is the correct total intake. The detailed calculation is:

• Lactated Ringer’s IV at 150 mL/hr for 9 hr: 150 mL/hr × 9 hr = 1,350 mL.
• Cefazolin in 100 mL of 0.9% sodium chloride: 100 mL.
• Two units of packed RBCs: 275 mL + 250 mL = 525 mL.
• Two IV bolus infusions of 250 mL of 6.0% sodium chloride: 250 mL + 250 mL = 500 mL.
• Famotidine in 50 mL of 0.9% sodium chloride: 50 mL.

Adding these together: 1,350 mL + 100 mL + 525 mL + 500 mL + 50 mL = 2,525 mL.

Choice D reason:

2,100 mL is not a correct calculation based on the given intake. This value does not accurately sum up any combination of the provided intake components.