A nurse is caring for a client who has nausea and is vomiting. The nurse should identify that the client is at risk for which of the following acid-base imbalances?

Choice A reason: Bacteria are not detected by the stool guaiac test. The stool guaiac test is a chemical test that reacts with hemoglobin, a protein found in red blood cells. Bacteria are microorganisms that do not contain hemoglobin.

Choice B reason: Fat is not detected by the stool guaiac test. The stool guaiac test is a chemical test that reacts with hemoglobin, a protein found in red blood cells. Fat is a lipid that does not contain hemoglobin.

Choice C reason: Parasites are not detected by the stool guaiac test. The stool guaiac test is a chemical test that reacts with hemoglobin, a protein found in red blood cells. Parasites are organisms that live in or on another host and do not contain hemoglobin.

Choice D reason: Blood is detected by the stool guaiac test. The stool guaiac test is a chemical test that reacts with hemoglobin, a protein found in red blood cells. Blood can indicate bleeding in the gastrointestinal tract, which can be caused by various conditions such as ulcers, polyps, or cancer.

Choice A reason: Tachycardia is a sign of circulatory overload. Circulatory overload is a condition where the blood volume or rate of infusion is too high for the client's cardiovascular system. This causes the heart to beat faster and harder to pump the excess fluid, resulting in a high heart rate, or tachycardia.

Choice B reason: Weight loss is not a sign of circulatory overload. Weight loss is a condition where the body loses more calories than it consumes, resulting in a decrease in body mass. Weight loss can be caused by various factors, such as diet, exercise, illness, or medication. Weight gain, not weight loss, is a sign of circulatory overload, as the excess fluid accumulates in the body.

Choice C reason: Hypotension is not a sign of circulatory overload. Hypotension is a condition where the blood pressure is too low, which can impair the blood flow to the vital organs. Hypotension can be caused by various factors, such as dehydration, bleeding, shock, or medication. Hypertension, not hypotension, is a sign of circulatory overload, as the excess fluid increases the pressure in the blood vessels.

Choice D reason: Diaphoresis is not a sign of circulatory overload. Diaphoresis is a condition where the body sweats excessively, which can help to regulate the body temperature and eliminate toxins. Diaphoresis can be caused by various factors, such as fever, anxiety, exercise, or medication. Edema, not diaphoresis, is a sign of circulatory overload, as the excess fluid leaks into the interstitial spaces and causes swelling.