The patient received Humalog (rapid acting) insulin 5 units subcutaneously at 8:00 AM. The nurse plans to monitor this patient for signs of hypoglycemia at which time related to the insulin's peak action?

Choice A reason: This statement is false. Glucose: 88 mg/dL is a normal blood sugar level and does not indicate any problem with fluid or electrolyte balance.

Choice B reason: This statement is false. WBCs: 4,000 is slightly below the normal range, but not significantly low. It may indicate a mild infection or inflammation, but not a serious fluid or electrolyte imbalance.

Choice C reason: This statement is false. K+: 3.4 mEq/L is slightly below the normal range, but not dangerously low. It may indicate a mild potassium deficiency, which can cause muscle weakness, but not restlessness or agitation.

Choice D reason: This statement is true. Na+: 154 mEq/L is above the normal range and indicates hypernatremia, or high blood sodium level. This can cause dehydration, confusion, restlessness, agitation, and seizures. It is a medical emergency that requires immediate treatment. Continuous tube feedings can increase the risk of hypernatremia if the formula is too concentrated or the fluid intake is inadequate.

Choice A reason: This statement is false. 3% Sodium Chloride is a hypertonic solution that can cause fluid overload, hypernatremia, and cellular dehydration. It is not indicated for a patient with nausea, vomiting, and Salmonella infection, who is likely to have fluid and electrolyte losses.

Choice B reason: This statement is false. Dextrose 10% in water is a hypotonic solution that can cause fluid shifts, hyponatremia, and cellular edema. It is not indicated for a patient with nausea, vomiting, and Salmonella infection, who is likely to have fluid and electrolyte losses.

Choice C reason: This statement is true. 0.9% Sodium Chloride with 40 mEq Potassium (KCl) is an isotonic solution that can maintain fluid and electrolyte balance. It is indicated for a patient with nausea, vomiting, and Salmonella infection, who is likely to have fluid and electrolyte losses, especially sodium and potassium.

Choice D reason: This statement is false. Lactated Ringers is an isotonic solution that can maintain fluid and electrolyte balance, but it also contains lactate, which can be converted to bicarbonate in the liver. It is not indicated for a patient with nausea, vomiting, and Salmonella infection, who may have metabolic acidosis due to diarrhea and lactate accumulation.