A male client is admitted for observation because he is reporting progressively increasing fatigue over the past month and a brief episode of dizziness that occurred today. He has a history of heartburn and indigestion that he self-treats with Ibuprofen and antacids. Which assessment finding should the nurse report immediately to the healthcare provider? Reference Ranges: Hemoglobin (14 to 18 g/dL (8.7 to 11.2 mmol/L)] Hematocrit [429% to 5296 (0.42 to 0.52 volume fraction)] Gastric pH [1.5 to 3.5]

A. Hematocrit 42% (0.42 volume fraction): This value is within the normal range for hematocrit (42% to 52%). Therefore, it does not indicate an immediate concern. B. Positive guaiac of stool: A positive guaiac test for occult blood in the stool indicates gastrointestinal bleeding. Given the client's history of self-treating with ibuprofen (a nonsteroidal anti-inflammatory drug, NSAID) and his symptoms of fatigue and dizziness, this finding suggests possible gastrointestinal bleeding due to NSAID-induced ulcers or bleeding. This requires immediate reporting to the healthcare provider for further evaluation and intervention. C. Gastric pH 2: While the gastric pH is on the acidic side, it is within the normal range for gastric acid (1.5 to 3.5). This finding does not necessarily indicate an acute problem by itself. D. Hemoglobin 13 g/dL (8.07 mmol/L): Although this hemoglobin level is slightly below the normal range for males (14 to 18 g/dL), it is not as critical as a positive guaiac test for stool blood. It might be worth monitoring, but it is not as urgent as addressing potential gastrointestinal bleeding.