A client who has atrial fibrillation is prescribed warfarin therapy.

Which of the following statements by the client indicates an understanding of the medication?

Choice A rationale:

Hyperglycemia is a key symptom of DKA. It occurs when there is an insufficient amount of insulin in the body to allow glucose to enter cells for use as energy. As a result, the body begins to break down fat for fuel, leading to the production of ketones and causing blood glucose levels to rise1. Normal blood glucose levels are between 4.0 to 6.0 mmol/L when fasting and up to 7.8 mmol/L two hours after eating2.

Choice B rationale:

Ketonuria, or the presence of ketones in the urine, is another symptom of DKA. When the body breaks down fat for energy, ketones are produced. If too many ketones build up in the blood, they can spill over into the urine1.

Choice C rationale:

Metabolic acidosis occurs in DKA due to the accumulation of ketones in the blood. Ketones are acidic, and when they build up in the blood, they cause the blood to become more acidic, leading to metabolic acidosis1.

Choice D rationale:

Hypokalemia is not a symptom of DKA. In fact, patients with DKA often have high potassium levels in their blood at presentation because acidosis causes potassium to move from inside the cells into the bloodstream1. However, during treatment for DKA, when insulin is administered and acidosis is corrected, potassium moves back into the cells and can lead to low potassium levels or hypokalemia1.

Choice E rationale:

Dehydration is a common symptom of DKA. High blood glucose levels lead to increased urination as the body tries to get rid of the excess glucose. This can result in dehydration1.

Choice F rationale:

Kussmaul respirations are a type of hyperventilation that occurs in DKA as the body tries to get rid of excess acids (ketones) through the lungs by breathing rapidly and deeply1.

Choice A rationale:

The nurse should monitor the client for tachycardia as an adverse effect of beta blockers like metoprolol. Beta blockers work by reducing heart rate and blood pressure, so the presence of tachycardia would be unexpected and could indicate a potential adverse reaction to the medication.

Choice B rationale:

Hyperglycemia is not a common adverse effect of beta blockers like metoprolol. In fact, these medications can sometimes mask the symptoms of hypoglycemia, making it important for diabetic patients to closely monitor their blood glucose levels. However, hyperglycemia is not a typical side effect.

Choice C rationale:

Bronchospasm is not a common adverse effect of metoprolol. Beta blockers like metoprolol can cause bronchoconstriction in some individuals, but this effect is generally more prominent with non-selective beta blockers like propranolol. It is not a common adverse effect of metoprolol and would not be the primary concern when monitoring a patient on this medication.

Choice D rationale:

The nurse should monitor the client for hyperkalemia as an adverse effect of metoprolol. Beta blockers can inhibit the release of insulin from the pancreas, which can lead to elevated blood potassium levels (hyperkalemia). This is particularly important in patients with renal impairment, as they may have difficulty clearing excess potassium from the body.