A nurse is assessing a client who has type 1 diabetes mellitus. Click to highlight the findings below that require immediate follow-up. To deselect a finding, click on the finding again. Body System Findings Cardiovascular Pulse is rapid. Heart rate. S1 and S2 on auscultation. Peripheral pulses palpable. Capillary refill less than 2 seconds. Blood pressure Respiratory Respirations deep and rapid. Fruity odor noted to breath. Rhonchi to right lung on auscultation, frequent nonproductive cough noted. Respiratory rate ABGS Genitourinary Client reports frequent urination with no difficulty. Urine ketones BUN level

This question focuses on identifying critical findings in a client with type 1 diabetes mellitus who is presenting with severe hyperglycemia, infection, and metabolic acidosis. The client shows signs consistent with diabetic ketoacidosis (DKA) and concurrent pneumonia, both of which can rapidly become life-threatening. DKA is characterized by insulin deficiency leading to hyperglycemia, ketone production, dehydration, and metabolic acidosis. Immediate follow-up is required for findings indicating respiratory compensation, hemodynamic instability, and worsening acid-base imbalance. Rationale for correct findings: • Blood pressure: A decreasing blood pressure (from 118/72 mmHg to 108/68 mmHg) suggests early circulatory compromise likely due to dehydration from osmotic diuresis in DKA. Fluid losses from hyperglycemia cause intravascular volume depletion. This can progress to hypovolemic shock if not corrected. Therefore, blood pressure trends require urgent monitoring. • Heart rate: An elevated heart rate reflects the body’s compensatory response to dehydration and decreased circulating volume in DKA. Tachycardia occurs as the body attempts to maintain cardiac output despite fluid loss from osmotic diuresis. It may also indicate systemic infection from pneumonia. Persistent tachycardia signals worsening physiologic stress. • Pulse is rapid: A rapid pulse reinforces the presence of compensatory cardiovascular response to hypovolemia and metabolic stress. In DKA, fluid loss leads to reduced preload and increased sympathetic stimulation. This results in a bounding or rapid pulse as the body attempts to maintain perfusion. It is an early warning sign of circulatory instability. • Respiratory rate: An increased respiratory rate indicates compensatory mechanisms for metabolic acidosis. In DKA, the body increases ventilation (Kussmaul respirations) to blow off carbon dioxide and raise pH. A rising respiratory rate signals worsening acidosis. This is a key indicator of metabolic decompensation. • Respirations deep and rapid with fruity breath odor: Deep, rapid (Kussmaul) respirations combined with fruity breath odor indicate ketone accumulation and metabolic acidosis. The fruity odor results from acetone, a ketone body. This is a hallmark sign of diabetic ketoacidosis. It requires urgent intervention with insulin and fluid replacement. • Rhonchi in right lung with frequent nonproductive cough: Rhonchi and cough suggest pneumonia, which is the likely precipitating infection for DKA. Infection increases metabolic demand and worsens insulin resistance. Pneumonia in a diabetic client can rapidly destabilize glucose control. This finding requires immediate treatment with antibiotics and respiratory support. • ABGs: ABGs show metabolic acidosis (pH 7.32, HCO₃ 19 mEq/L) with respiratory compensation (low PCO₂). This confirms diabetic ketoacidosis. Worsening acid-base imbalance can lead to altered mental status and cardiac instability. ABG abnormalities require urgent correction through insulin and fluids. • Urine ketones: Positive urine ketones confirm fat breakdown due to insulin deficiency. Ketone accumulation contributes to metabolic acidosis and toxicity. This is a direct indicator of diabetic ketoacidosis severity. Monitoring ketones is essential to evaluate response to therapy. Rationale for incorrect findings: • S1, S2 heard on auscultation: Normal S1 and S2 heart sounds indicate that there is no immediate evidence of abnormal valvular function or acute structural cardiac compromise. In diabetic ketoacidosis, the primary cardiovascular concern is usually related to volume depletion rather than intrinsic heart sound changes. Clear heart sounds do not reflect worsening metabolic acidosis or infection severity. • Capillary refill less than 2 seconds: A capillary refill of less than 2 seconds indicates adequate peripheral perfusion at the time of assessment. This suggests that, despite dehydration risk in diabetic ketoacidosis, tissue perfusion has not yet significantly deteriorated. It does not reflect the severity of metabolic acidosis or infection. Therefore, this is a reassuring finding and not a priority indicator of clinical worsening.