A nurse is providing teaching to a client who has gastroesophageal reflux disease. Which of the following statements should the nurse include in the teaching?

A) Cimetidine: Cimetidine is an H2 receptor antagonist used to reduce stomach acid and treat conditions such as peptic ulcers and gastroesophageal reflux disease (GERD). It is not used to manage metabolic acidosis.

B) Calcitonin: Calcitonin is used to regulate calcium levels and treat conditions like osteoporosis or hypercalcemia. It does not address metabolic acidosis and is not appropriate for this condition.

C) Sodium bicarbonate: Sodium bicarbonate is commonly used to treat metabolic acidosis. It works by neutralizing excess acid in the blood, thereby increasing the blood's pH and helping to correct the acid-base imbalance associated with metabolic acidosis.

D) Sodium chloride: Sodium chloride is a salt that can be used to manage fluid and electrolyte imbalances but does not correct metabolic acidosis. It is not suitable for treating the acid-base imbalance seen in metabolic acidosis.

A) Lymphocytes 30%:
Lymphocyte levels are typically elevated during the acute phase of mononucleosis as the body fights the Epstein-Barr virus. A level of 30% indicates that the lymphocyte count is returning to a more normal range, which suggests the client is recovering from the infection.

B) RBC 4.4:
The red blood cell count is not directly indicative of recovery from mononucleosis. While it provides information about the client's overall hematologic status, it does not specifically reflect the status of the viral infection.

C) Hgb 14 g/dL:
Hemoglobin levels can provide information about the client's oxygen-carrying capacity but do not specifically indicate recovery from mononucleosis. Normal hemoglobin levels are reassuring but not directly related to the viral infection's resolution.

D) Hct 42%:
Hematocrit levels, like hemoglobin, offer information about the client's blood composition but do not directly indicate recovery from mononucleosis. While normal hematocrit levels are desirable, they are not specific to the recovery status of the viral illness.