Salary Information. ICU nurses earned pay ranging from $45,721 to $89,513 in 2014, according to PayScale.com. Earnings for pediatric nurses ranged from $31,776 to $82,107 in 2014, PayScale.com noted, with the median pay at $50,702. Pediatric intensive care unit nurses have three main duties: monitoring patients, providing appropriate care and informing patients and their families on the status of procedures.