A client in the emergency department reports that he has been vomiting excessively for the last 2 days. His arterial blood gas (ABG) analysis shows a pH of 7.50, the partial pressure of arterial carbon dioxide (PaCO2) of 43 mm Hg, partial pressure of arterial oxygen (PaO2) of 75 mm Hg, and bicarbonate (HCO3) of 42 mEq/L. Based on these findings, the nurse documents that the client is experiencing which type of acid-base imbalance?

A. IV administration of 50% dextrose in water:
This is the correct answer. The client is severely hypoglycemic, and IV administration of 50% dextrose in water is the most rapid way to raise the blood glucose level in an emergency situation.

B. IV bolus of 5% dextrose in 0.45% NaCl:
While this solution contains dextrose, it is not as concentrated as 50% dextrose. In an emergency, a more concentrated solution is needed to rapidly correct severe hypoglycemia.

C. Administer 4 oz. clear juice:
Oral intake may be too slow in this critical situation. IV administration is more appropriate for rapidly raising the blood glucose level.

D. Subcutaneous administration of 12 to 15 units of regular insulin:
This would further lower the blood glucose level and is not appropriate for treating severe hypoglycemia.

A. Leukemia:
Explanation: Leukemia is a cancer of the blood-forming tissues, including the bone marrow and lymphatic system. It typically presents with an abnormal increase in white blood cells. While fatigue can be a symptom, increased bilirubin concentration and an increased reticulocyte count are not typical findings in leukemia.

B. Hemolytic Anemia:
Explanation: Hemolytic anemia is characterized by the premature destruction of red blood cells, leading to an increased release of bilirubin (from the breakdown of hemoglobin) and an increased reticulocyte count (as the body attempts to compensate by producing more red blood cells). This is a likely possibility given the presented symptoms.

C. Hypoproliferative Anemia:
Explanation: Hypoproliferative anemia is characterized by a decreased production of red blood cells. It is unlikely in this scenario, as an increased reticulocyte count suggests an attempt by the bone marrow to increase red blood cell production.

D. Thrombocytopenia:
Explanation: Thrombocytopenia is a condition characterized by a low platelet count. It does not typically present with an increased bilirubin concentration or an increased reticulocyte count.