A nurse is creating home instructions for a client who has immunodeficiency. Which of the following statements by the client indicates an understanding of the teaching?

Choice A reason:

The arterial blood gas (ABG) values of pH 7.26, HCO₃ 14, and PaCO₂ 30 indicate metabolic acidosis with partial respiratory compensation. Acute kidney injury (AKI) often leads to metabolic acidosis due to the kidneys’ inability to excrete acid and reabsorb bicarbonate. The low pH indicates acidosis, the low bicarbonate (HCO₃) reflects metabolic acidosis, and the low PaCO₂ shows that the respiratory system is trying to compensate by blowing off CO₂.

Choice B reason:

The ABG values of pH 7.49, HCO₃ 30, and PaCO₂ 40 indicate metabolic alkalosis. This condition is characterized by an elevated pH and bicarbonate level. Metabolic alkalosis is not typically associated with acute kidney injury. Instead, it can result from excessive bicarbonate intake, loss of gastric acid (e.g., vomiting), or diuretic use.

Choice C reason:

The ABG values of pH 7.26, HCO₃ 24, and PaCO₂ 46 suggest respiratory acidosis. The low pH indicates acidosis, but the normal bicarbonate level and elevated PaCO₂ point to a respiratory cause rather than a metabolic one. Respiratory acidosis occurs when the lungs cannot remove enough CO₂, leading to its accumulation. This is not a typical presentation of AKI.

Choice D reason:

The ABG values of pH 7.49, HCO₃ 24, and PaCO₂ 30 indicate respiratory alkalosis. The high pH and low PaCO₂ suggest that the patient is hyperventilating, leading to excessive CO₂ loss. This condition is not commonly associated with acute kidney injury, which more frequently causes metabolic acidosis.

Choice A reason:

A decrease in heart rate is a key indicator of adequate fluid resuscitation in burn patients. When a patient is adequately hydrated, the heart does not need to work as hard to pump blood, leading to a lower heart rate. This is because fluid resuscitation helps restore blood volume, improving cardiac output and reducing the strain on the heart. Normal heart rate ranges for adults are typically between 60-100 beats per minute.

Choice B reason:

While blood pressure is an important parameter to monitor, a decrease in blood pressure is not an indication of adequate fluid replacement. In fact, adequate fluid resuscitation should help maintain or increase blood pressure to normal levels. Low blood pressure could indicate hypovolemia or inadequate fluid resuscitation3. Normal blood pressure ranges are generally considered to be around 120/80 mmHg.

Choice C reason:

A decrease in urine output is not a sign of adequate fluid resuscitation. On the contrary, adequate fluid replacement should result in an increase in urine output as the kidneys receive sufficient blood flow to filter and excrete waste products. Urine output is a critical marker for assessing fluid balance, with normal output being about 0.5-1 mL/kg/hr.

Choice D reason:

A decrease in weight is not an immediate indicator of adequate fluid resuscitation. Weight changes can occur over a longer period and are influenced by various factors, including fluid shifts, edema, and overall fluid balance. In the acute phase of burn management, more immediate indicators like heart rate and urine output are more reliable.