PMID- 2500687
OWN - NLM
STAT- MEDLINE
DCOM- 19890802
LR  - 20180216
IS  - 0025-7931 (Print)
IS  - 0025-7931 (Linking)
VI  - 55
IP  - 1
DP  - 1989
TI  - Resting gas exchange in nonsmoking bituminous-coal miners with simple 
      pneumoconiosis.
PG  - 28-32
AB  - Gas exchange at rest under normoxic conditions was studied in 2,297 nonsmoking 
      bituminous-coal miners with and without simple coal workers' pneumoconiosis 
      (CWP). Measurements of arterial oxygen tension (Pao2) and arterial carbon dioxide 
      tension (Paco2) from blood gas samples obtained at rest in the seated position 
      were used to calculate the alveolar-arterial oxygen tension difference, (A-a)Do2, 
      using the classic alveolar-air equation. We then recalculated the (A-a)Do2 using 
      the age-predicted Pao2 for each miner. The difference between the actual and the 
      predicted (A-a)Do2 was measured and the mean difference for each category of 
      simple CWP was analyzed. We found no evidence that the resting gas exchange 
      differs significantly from the age-predicted (A-a)Do2 in the nonsmoking 
      bituminous-coal minor with simple CWP. Likewise, there is no significant change 
      in (A-a)Do2 with change in the category of simple CWP.
FAU - Roy, T M
AU  - Roy TM
AD  - Division of Respiratory and Environmental Medicine, University of Louisville 
      School of Medicine, Ky.
FAU - Walker, J F
AU  - Walker JF
FAU - Snider, H L
AU  - Snider HL
FAU - Anderson, W H
AU  - Anderson WH
LA  - eng
PT  - Journal Article
PL  - Switzerland
TA  - Respiration
JT  - Respiration; international review of thoracic diseases
JID - 0137356
RN  - 142M471B3J (Carbon Dioxide)
RN  - S88TT14065 (Oxygen)
SB  - IM
MH  - Age Factors
MH  - Carbon Dioxide/blood
MH  - *Coal Mining
MH  - Humans
MH  - Middle Aged
MH  - Oxygen/blood
MH  - Pneumoconiosis/blood/*physiopathology
MH  - *Pulmonary Gas Exchange
MH  - Smoking
MH  - Ventilation-Perfusion Ratio
EDAT- 1989/01/01 00:00
MHDA- 1989/01/01 00:01
CRDT- 1989/01/01 00:00
PHST- 1989/01/01 00:00 [pubmed]
PHST- 1989/01/01 00:01 [medline]
PHST- 1989/01/01 00:00 [entrez]
AID - 10.1159/000195702 [doi]
PST - ppublish
SO  - Respiration. 1989;55(1):28-32. doi: 10.1159/000195702.