A nurse is collecting data on a client who has oxygen toxicity. Which of the following findings should the nurse expect?

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.

Choice A reason: Muscle twitching is a sign of central nervous system oxygen toxicity, which can occur when breathing high concentrations of oxygen under pressure. It can also cause seizures, confusion, and loss of consciousness.

Choice B reason: Facial flushing is not a symptom of oxygen toxicity. It can be caused by other conditions such as fever, allergic reactions, or alcohol consumption.

Choice C reason: Periorbital edema is not a symptom of oxygen toxicity. It can be caused by other conditions such as kidney disease, heart failure, or allergies.

Choice D reason: Metallic taste in mouth is not a symptom of oxygen toxicity. It can be caused by other conditions such as medication side effects, dental problems, or infections.