A patient is staying in a cabin at an altitude of 5,000 feet. After 5 days his respiratory rate is elevated and his arterial PCO2 is decreased. What other changes would be present?
Select Your Answer:
The decreased barometric pressure at high altitude causes arterial hypoxemia.
The patient compensates by increasing the respiratory rate, which reduces PCO2 and results in respiratory alkalosis.
The kidneys compensate by increasing excretion of HCO3 to balance the respiratory losses of bicarbonate.
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Wilderness Medical Society practice guidelines for the prevention and treatment of acute altitude illness: 2014 update., Luks AM,McIntosh SE,Grissom CK,Auerbach PS,Rodway GW,Schoene RB,Zafren K,Hackett PH,, Wilderness & environmental medicine, 2014 Dec [PubMed PMID: 25498261]
Acute high-altitude illnesses., Bärtsch P,Swenson ER,, The New England journal of medicine, 2013 Oct 24 [PubMed PMID: 24152275]
Management of high altitude pulmonary edema in the Himalaya: a review of 56 cases presenting at Pheriche medical aid post (4240 m)., Jones BE,Stokes S,McKenzie S,Nilles E,Stoddard GJ,, Wilderness & environmental medicine, 2013 Mar [PubMed PMID: 23062320]