Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Model predictions of continuous COHb levels in response to changes in ambient CO concentrations. A: 40 ppm CO for 1.5 h (meal 1); 20 ppm CO for 2.5 h; 50 ppm CO for 2 h (meal 2); and 20 ppm CO for 2.5 h. B: %COHb for a 17-yr-old Guatemalan female: Hb = 12.4 g/dl Hb; weight = 49.5 kg; height = 1.494 m; MRO2 (rest) = 160 ml O2/min, while standing (exercise level 1, solid line) and walking slowly while carrying a child on her back (exercise level 3, dashed line).
