Patient selection: infant weighing 501 to 1,500 grams
Late onset sepsis was not defined but appears to be 4 or more days after delivery (>= 96 hours), up to 120 days.
Risk factors for late onset sepsis:
(1) male gender
(2) lower gestational age (born more prematurely)
(3) very low birthweight
(4) low serum IgG concentration
Findings suggesting late onset sepsis:
(1) apnea
(2) feeding intolerance
(3) abdominal distention
(4) guaiac-positive stools
(5) lethargy
(6) hypotonia
(7) need for respiratory support
(8) unexplained metabolic acidosis
(9) hyperglycemia
(10) abnormal white blood cell count (leukopenia, leukocytosis, or left shift)
(11) hypotension (10 mm Hg drop in systolic and/or diastolic blood pressure)