A client receiving mechanical ventilation has a pH of 7.26, PaCO2 of 68 mm Hg, and a PaO2 of 92 mm Hg. Which intervention should the nurse implement?

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:

Ask the wife to stop and assess the client's swallowing reflex. Rationale: While assessing the client's swallowing reflex is important, the immediate priority is to provide hydration and comfort to the client, especially if the client is tearful and attempting to drink water. The nurse should assist the wife in providing small sips of water while being cautious and observing the client's ability to swallow safely.

Choice B rationale:

Give the wife a straw to help facilitate the client's drinking. Rationale: Giving the wife a straw may be helpful, but it does not address the client's immediate need for hydration and assistance with drinking. The nurse should actively assist in providing water to the client while assessing the client's ability to swallow safely.

Choice C rationale:

Assist the wife and carefully give the client small sips of water. Rationale: This is the correct answer. The nurse's immediate priority should be to assist the client with hydration. Providing small sips of water while being cautious and observing the client's ability to swallow safely is an appropriate action. This can help address the client's immediate needs for comfort and hydration.

Choice D rationale:

Obtain thickening powder before providing any more fluids. Rationale: While thickening powder may be necessary for clients with swallowing difficulties, it may cause unnecessary delay in providing hydration to the client in distress. The nurse should first provide water and assess the client's swallowing abilities. If thickened liquids are indicated, they can be administered later as per the healthcare provider's orders.