NTL Record

Title Assessment of factors possibly contributing to the susceptibility of sickle trait erythrocytes to mild hypoxia. I., Design considerations and research protocol.
Record ID 39352
Personal Name
Creator
McKenzie, Jess M.
Corporate Creator Civil Aeromedical Institute
Corporate
Contributor
United States. Office of Aviation Medicine
Publisher Civil Aerospace Medical Institute
Publication Date 19780800
Language English
Abstract This report continues a review (see FAA-AM-76-15) of the evidence for mixed dominance of the Hbs beta gene in people with the sickle cell trait. These individuals, whose erythrocytes contain a mixture of hemoglobins (HbA/HbS), are healthy and have a normal life expectancy. They are tolerant to moderate altitudes; their erythrocytes become sickled only at oxygen tensions that would be hazardous to any person. However, there is a possibility that other debilitating factors (e.g., alcoholism, pulmonary disorders) can, in a small fraction of those with the trait, produce an abnormal susceptibility to hypoxia. Those so debilitated would not be medically qualified to serve as air crewmembers. This report presents an experimental plan for estimating the proportion of such individuals in a population of young people with the sickle trait and outlines methods to be used in the study.
Rosap ID dot:21140
Rosap URL https://rosap.ntl.bts.gov/view/dot/21140
TRT Terms Flight personnel; Certification; Diseases and medical conditions; Hypoxia; Physiological stress; Blood analysis; Urine; Human subject testing; Methodology; Design methods
General Subjects Flight crews--Certification; Sickle cell anemia--Diagnosis--Methodology; Cerebral anoxia; Hemoglobin; Stress (Physiology); Blood--Analysis; Urine--Analysis; Kidneys; Experimental design
Classification NTL - AVIATION - AVIATION
Geographical
Coverage
United States
Report Number FAA-AM-78-30; DOT/FAA/AM-78/30
Resource type Tech Report
URL https://ntlrepository.blob.core.windows.net/lib/39000/39300/39352/AM78-30.pdf
Format PDF
Database NTL Digital Repository