A community health nurse in a pediatric clinic is reviewing the history of a 12-year-old client. Which of the following immunizations should the nurse expect to administer?

A. Pyridoxine (vitamin B6): Deficiency in vitamin B6 can cause peripheral neuropathy, irritability, depression, and seizures. While glossitis may occur, the combination of cheilosis and corneal vascularization is not typical of B6 deficiency.

B. Riboflavin (vitamin B2): Riboflavin deficiency is classically associated with cheilosis, glossitis, corneal vascularization, and seborrheic dermatitis affecting areas like the scrotum and vulva. These findings are hallmark signs of ariboflavinosis.

C. Thiamine (vitamin B1): Thiamine deficiency causes beriberi and Wernicke-Korsakoff syndrome, with manifestations including neuropathy, heart failure, and confusion. It is not linked to cheilosis or corneal changes.

D. Niacin (nicotinic acid): Niacin deficiency results in pellagra, characterized by the “three Ds”: dermatitis, diarrhea, and dementia. The dermatitis is photosensitive but does not involve cheilosis or corneal vascularization.

A. Hypothermia: Diarrhea usually causes fluid and electrolyte loss but does not directly result in hypothermia. More commonly, dehydration and electrolyte imbalances occur, while temperature changes are related to infection or other systemic causes.

B. Rigid abdomen: A rigid abdomen is often associated with peritonitis or acute abdominal emergencies, not uncomplicated diarrhea. Diarrhea generally causes cramping, urgency, and loose stools without producing abdominal rigidity.

C. Decreased bowel sounds: Diarrhea is caused by increased intestinal motility, so bowel sounds are typically hyperactive rather than decreased. Hypoactive or absent bowel sounds are seen more often with conditions like ileus or severe hypokalemia.

D. Dehydration: Persistent diarrhea leads to significant fluid and electrolyte loss, resulting in dehydration. Expected findings include dry mucous membranes, poor skin turgor, hypotension, and concentrated urine output.