Abstract
To evaluate radiant power received by infants under radiant warmers, 11 neonates (mean gestational age 32.2 weeks, mean weight 1.50 kg) were monitored. A wattmeter was used to evaluate warmer power (watts), and a thermopile placed at bed level was used to correlate warmer power to radiant power density received (mw/cm2). Warmer power ranged from 133-301 watts. A linear relationship existed between warmer power and radiant power density received (r = 0.97, p < 0.001). After establishing that radiant power delivery could be monitored with a wattmeter, this technique was used to quantitate radiant power in a small series of infants with and without a plastic shield. Radiant power density received decreased in all infants when shielded (mean 14.6-11.2 mw/cm2, p < 0.01). This study demonstrates: (1) radiant warmer power can be monitored with a wattmeter; (2) warmer power correlates to radiant power density received; and (3) radiant power monitoring can be used to evaluate radiant power demands in specific clinical situations.
Original language | English (US) |
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Pages (from-to) | 721-724 |
Number of pages | 4 |
Journal | Critical care medicine |
Volume | 8 |
Issue number | 12 |
DOIs | |
State | Published - Dec 1980 |
ASJC Scopus subject areas
- Critical Care and Intensive Care Medicine