A 3-week-old infant presents to the Emergency Room with vomiting and lethargy. He is hypoactive with mottled skin and no focus of infection. Relevant vitals and lab results are pro... A 3-week-old infant presents to the Emergency Room with vomiting and lethargy. He is hypoactive with mottled skin and no focus of infection. Relevant vitals and lab results are provided. Which of the following is the most likely definitive treatment? A. Antibiotics B. Fluid and dextrose C. Dextrose and intralipid D. Cortisone and hormonal therapy Read more

Understand the Problem

The question describes a 3-week-old infant presenting with vomiting, lethargy, hypoactivity, mottled skin, and abnormal lab results (low sodium, high potassium, low glucose). The question asks for the most likely definitive treatment based on the provided clinical information and lab values. The key is to recognize the constellation of symptoms and lab findings to narrow down the potential diagnoses and choose the most appropriate treatment option.

More Information

Newborns and young infants are at higher risk of sepsis. The symptoms described in the question are consistent with a septic presentation in this age group. Early antibiotic treatment is critical in these cases.

Tips

It's a common mistake to overlook sepsis in infants due to their non-specific symptoms. Always consider it in young infants presenting with lethargy and feeding issues. Do not confuse the symptoms with other common viruses.

Sources

• Sepsis - what it is and triggers like septicaemia and blood poisoning - healthdirect.gov.au