During a routine checkup, a patient states that she is unable to take the prescribed antihistamine because of one of its most common adverse effects. The nurse suspects that which adverse effect has been bothering this patient?

Choice A reason: Insulin glargine is not the type of insulin to use for diabetic ketoacidosis, as it is a long-acting insulin that has a duration of 24 hours and no peak effect. It is used to provide basal insulin coverage and prevent hyperglycemia.

Choice B reason: Regular insulin is the type of insulin to use for diabetic ketoacidosis, as it is a short-acting insulin that has an onset of 30 to 60 minutes and a peak of 2 to 4 hours. It is used to lower the blood glucose level rapidly and correct the acidosis.

Choice C reason: Insulin detemir is also not the type of insulin to use for diabetic ketoacidosis, as it is a long-acting insulin that has a duration of 12 to 24 hours and no peak effect. It is also used to provide basal insulin coverage and prevent hyperglycemia.

Choice D reason: NPH insulin is also not the type of insulin to use for diabetic ketoacidosis, as it is an intermediate-acting insulin that has an onset of 2 to 4 hours and a peak of 4 to 12 hours. It is used to provide intermediate insulin coverage and prevent hyperglycemia.

Choice A reason: This is incorrect because withholding all medications may cause hyperglycemia or ketoacidosis in the patient, especially if they are taking insulin or sulfonylureas. The nurse should consult with the prescriber to adjust the dose or timing of the medications according to the patient's blood glucose level and the duration of the procedure.

Choice B reason: This is correct because contacting the prescriber to clarify orders is the best action by the nurse, as the prescriber can provide specific instructions on how to manage the patient's oral antidiabetic drugs before and after the oral endoscopy. The nurse should also monitor the patient's blood glucose level closely and report any abnormal findings to the prescriber.

Choice C reason: This is incorrect because administering half the original dose may not be appropriate for the patient, as it may cause hypoglycemia or hyperglycemia depending on the type and dose of the medication and the patient's blood glucose level. The nurse should not make any changes to the medication regimen without the prescriber's approval.

Choice D reason: This is incorrect because giving the medication with a sip of water may violate the NPO status of the patient, which is necessary to prevent aspiration or interference with the oral endoscopy. The nurse should not administer any oral medications or fluids to the patient unless the prescriber allows it.