A client has flushed skin, bulging eyes and perspiration, and states that he has been "irritable" and having palpitations. The nurse interprets these findings as suggesting:

A. The patient is demonstrating improved control of hyperglycemia over the last several months: The HbA1c level reflects the average blood glucose level over the past 2-3 months. A drop from 9.4% to 5.4% indicates a significant improvement in blood sugar control.

B. The patient has less need for insulin: A drop in HbA1c indicates improved blood sugar control, but it doesn't directly indicate that the patient has reduced insulin needs. Insulin requirements can still vary depending on the individual’s treatment plan and overall health.

C. The patient is experiencing a reduction in insulin sensitivity: Improved control of hyperglycemia (as evidenced by the drop in HbA1c) suggests better insulin sensitivity, not a reduction. Insulin sensitivity typically improves with better glucose control.

D. The patient has been less compliant with the prescribed treatment regimen: A lower HbA1c suggests better compliance with treatment; usually indicates successful management of blood glucose levels, which often results from adhering to the prescribed regimen.

A. Push IV potassium: Potassium should be administered slowly and with caution, as administering potassium too rapidly can cause cardiac arrhythmias. Potassium should only be given according to specific protocols and after monitoring serum potassium levels.

B. Administer intravenous potassium: In diabetic ketoacidosis (DKA), potassium levels often decrease due to insulin therapy, which shifts potassium into cells. Intravenous potassium is often required to replace lost potassium and prevent dangerous complications.

C. Assess fluid volume status: In DKA, the client experiences significant fluid loss due to polyuria (frequent urination) and dehydration. It is important to closely monitor the client’s fluid volume status and correct it with intravenous fluids, typically normal saline.

D. Check for urinary ketones: Urinary ketones are a key marker in diagnosing DKA. The nurse should monitor for the presence of ketones in the urine as it helps assess the degree of ketosis and the effectiveness of treatment.

E. Maintain adequate ventilation: In DKA, respiratory compensation (such as Kussmaul breathing) is common as the body attempts to correct acidosis. Adequate ventilation should be ensured to support the respiratory system and correct the metabolic acidosis.