BME_501___HW1_fall__2008

BME_501___HW1_fall__2008 - BME 501 HW#1 Due Sept 10 1....

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
BME 501 HW#1 Due Sept 10 1. Assume that a pilot in a fighter plane (Blue Angels flight show maneuver) can climb from sea level to 20,000 feet altitude essentially instantaneously. If gas in the lungs of the pilot has a partial pressure of oxygen of 100 mm Hg at sea level (P B =760 mm Hg) what will the partial pressure be at 20,000 feet if the barometric pressure there is 349 mm Hg. Alveolar gas is saturated with water vapor at 37 deg C (P H2O =47 mm Hg). Solution: According to the equation = × PO2 F B Since the plane climb from sea level to 20,000 feet altitude instantaneously, we consider the fraction of oxygen F as unchanged, which is = - = . F 100760 47 0 1403 Thus the partial pressure at 20,000 feet will be = - × . = . PO2 349 47 0 1403 42 36mmHg 2. In class the effective level of inspired oxygen partial pressure was calculated for a patient with a supplemental oxygen flow in a nasal cannula of 1 liter/minute and assuming a 50/50 inspiration-expiration split(B=565 mm Hg, inspired ventilation=8 liters/min). Instead, calculate what the supplemental flow level
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 01/11/2009 for the course BME 501 taught by Professor Yamashiro,hsiai during the Fall '07 term at USC.

Page1 / 2

BME_501___HW1_fall__2008 - BME 501 HW#1 Due Sept 10 1....

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online