TY - JOUR
T1 - Instrumentation for measuring functional residual capacity in small animals
AU - Koen, P. A.
AU - Moskowitz, G. D.
AU - Shaffer, T. H.
PY - 1977
Y1 - 1977
N2 - A system for measuring functional residual capacity (FRC) by the dilution method was evaluated to determine its suitability for use in neonates and small animals. The system makes use of rapid, automatically triggered valves for precise closure at end expiration. Results of a theoretical error analysis and experimental in vitro tests are presented and indicate that the measuring error in FRC is related to the FRC-to-initial rebreathing bag volume ratio. With a 200-ml bag volume one standard deviation of the calculated error was 16% for a 50-ml, 9.1% for a 100-ml, and 5.8% for a 200-ml FRC.
AB - A system for measuring functional residual capacity (FRC) by the dilution method was evaluated to determine its suitability for use in neonates and small animals. The system makes use of rapid, automatically triggered valves for precise closure at end expiration. Results of a theoretical error analysis and experimental in vitro tests are presented and indicate that the measuring error in FRC is related to the FRC-to-initial rebreathing bag volume ratio. With a 200-ml bag volume one standard deviation of the calculated error was 16% for a 50-ml, 9.1% for a 100-ml, and 5.8% for a 200-ml FRC.
UR - http://www.scopus.com/inward/record.url?scp=0017649897&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0017649897&partnerID=8YFLogxK
U2 - 10.1152/jappl.1977.43.4.755
DO - 10.1152/jappl.1977.43.4.755
M3 - Article
C2 - 908691
AN - SCOPUS:0017649897
SN - 0161-7567
VL - 43
SP - 755
EP - 758
JO - Journal of Applied Physiology Respiratory Environmental and Exercise Physiology
JF - Journal of Applied Physiology Respiratory Environmental and Exercise Physiology
IS - 4
ER -