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: Dry skin is not a sign of respiratory alkalosis. Respiratory alkalosis is a condition where the blood pH is too high due to excessive loss of carbon dioxide through rapid breathing. Dry skin can be caused by dehydration, cold weather, or skin conditions.

Choice B reason: Diarrhea is not a sign of respiratory alkalosis. Diarrhea is a condition where the stool is loose and watery due to increased intestinal motility or infection. Diarrhea can cause metabolic acidosis, which is a condition where the blood pH is too low due to excessive loss of bicarbonate.

Choice C reason: Abdominal pain is not a sign of respiratory alkalosis. Abdominal pain is a symptom that can have many causes, such as gastritis, appendicitis, or irritable bowel syndrome. Abdominal pain can also cause hyperventilation due to anxiety or discomfort, but it is not a direct result of respiratory alkalosis.

Choice D reason: Hyperventilation is a sign of respiratory alkalosis. Hyperventilation is a condition where the breathing rate is faster than normal, causing excess carbon dioxide to be expelled from the lungs. This lowers the partial pressure of carbon dioxide in the blood, which increases the blood pH and causes alkalosis. Hyperventilation can be caused by anxiety, fever, pain, or lung diseases.

The correct answer is b. Decreased deep tendon reflexes.

Choice A: Wheezing

Reason: Wheezing is typically associated with respiratory conditions such as asthma, chronic obstructive pulmonary disease (COPD), or allergic reactions. It is not a common manifestation of hyperkalemia. Hyperkalemia primarily affects the muscular and cardiovascular systems rather than the respiratory system.

Choice B: Decreased deep tendon reflexes

Reason: Hyperkalemia can cause neuromuscular symptoms, including muscle weakness and decreased deep tendon reflexes. High potassium levels interfere with the normal function of muscle cells and nerves, leading to these symptoms. This is a direct result of the altered action potentials in neurons caused by elevated potassium levels.

Choice C: Hypoactive bowel sounds

Reason: Hypoactive bowel sounds are generally associated with conditions that cause decreased gastrointestinal motility, such as ileus or bowel obstruction. While hyperkalemia can affect muscle function, it is more likely to cause hyperactive bowel sounds due to increased gastrointestinal motility rather than hypoactive sounds.

Choice D: Cerebral edema

Reason: Cerebral edema is swelling of the brain and is not a typical manifestation of hyperkalemia. It is more commonly associated with conditions such as traumatic brain injury, stroke, or severe infections. Hyperkalemia primarily affects the heart and muscles.