A woman visits a health center requesting oral contraceptives. Which laboratory test is most important for the nurse to assess before the patient begins oral contraceptive therapy?

Choice A reason: This is incorrect because lispro insulin is a rapid-acting insulin that does not need to be administered with another type of insulin. However, the patient may need a long-acting or intermediate-acting insulin to provide basal coverage throughout the day.

Choice B reason: This is incorrect because lispro insulin has a peak action of 30 to 90 min after the injection, which means that the patient is at the highest risk of hypoglycemia during this time. The nurse should assess for hypoglycemia more frequently than 4 hr after the injection.

Choice C reason: This is correct because lispro insulin has a fast onset of action of 15 to 30 min after the injection, which means that the patient should eat a meal within 15 min of the injection to prevent hypoglycemia.

Choice D reason: This is incorrect because polyuria is a sign of hyperglycemia, not hypoglycemia. The nurse should monitor for polyuria before the insulin injection, as it may indicate that the patient's blood glucose level is high.

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.