A nurse in the emergency department is assessing an older adult client who has community-acquired pneumonia. Which of the following findings should the nurse expect?

A. "Test your blood glucose level every 8 hours.": This is incorrect. During illness, blood glucose levels should be checked more frequently, typically every 2 to 4 hours, to closely monitor for hyperglycemia and prevent diabetic ketoacidosis (DKA). Checking every 8 hours may not be frequent enough, especially if the client is ill or experiencing stress, both of which can affect blood sugar.
B. "Check your urine for ketones when blood glucose levels are greater than 240 mg/dL.": This is the correct instruction. When blood glucose levels exceed 240 mg/dL, it is important to check for ketones in the urine. The presence of ketones can indicate the development of DKA, and early detection can prevent the condition from worsening.
C. "Withhold your usual daily dose of insulin.": This is incorrect. Insulin should never be withheld during periods of illness unless specifically instructed by a healthcare provider. Withholding insulin can increase the risk of DKA, as the body will continue to break down fat for energy in the absence of insulin, leading to ketosis.
D. "Drink 240 to 360 milliliters of calorie-free liquids every 8 hours.": This is not entirely correct. While staying hydrated is important, the recommendation is generally to drink more frequently, ideally 8 ounces of fluid every hour to stay well-hydrated. It is also recommended to drink fluids that contain some carbohydrates (such as electrolyte-containing drinks) to help manage blood glucose levels during illness.

A. Hypertension is not typically associated with pneumonia, especially in older adults. Pneumonia can lead to hypotension or sepsis, but not usually hypertension.
B. Unequal pupils are not a typical finding associated with pneumonia. This could suggest a neurological issue or a possible eye problem, not a respiratory infection.
C. Confusion is a common sign of pneumonia in older adults, especially in the elderly, who may present with altered mental status due to hypoxia, infection, or dehydration. Delirium or confusion is a common manifestation of pneumonia in this population.
D. Tympany on chest percussion suggests air in the abdominal cavity, not in the lungs, and is not typically associated with pneumonia. Pneumonia is more likely to present with dullness upon percussion due to consolidation in the lungs.