sajaqua1If she's breathing deep as she breathes fast, then oxygen is still reaching the alveoli , so arterial pO2 would not be effected.+27
imnotarobotbutlmao i'm so freaking dumb i thought she was having alcohol withdrawals because it was relieved by alcohol+2
sophMaybe Po2 is unaffected bc its perfusion (blood) limited not difusion limited (under normal circumstances). +2
charcot_bouchardPErioral tingling- due to transient hypocalcemia induced by resp alkalosis. +2
rainladI believe CO2 diffuses ~20x faster than O2, so increases in her respiratory rate have more effect on her PCO2 than her PO2+3
usmile1adding onto Charcot_bouchards comment, I found this:
Respiratory alkalosis secondary to hyperventilation is probably the most common cause of acute ionised hypocalcaemia. Binding between calcium and protein is enhanced when serum pH increases, resulting in decreased ionised calcium. Respiratory alkalosis can induce secondary hypocalcaemia that may cause cardiac arrhythmias, conduction abnormalities and various somatic symptoms such as paraesthesia, PErioral numbness, hyperreflexia, convulsive disorders, muscle spasm and tetany.
https://www.sciencedirect.com/science/article/pii/S1110184913000615+4
fatboyslimWow very cool. I didn't know alkalosis causes hypocalcemia or why hyperventilation causes perioral tingling. I thought the tingling sensation was due to hypocapnia-induced cerebral vasoconstriction and hence decreased cerebral perfusion. Sort of like when u get choked out you feel tingling (not recommended lol)+1
ankigravityH+ can displace Ca bound to albumin. So, โ H+ (acidosis; โ pH) โ โ Ca binding to albumin โ HYPERcalcemia. In contrast, โ H+ (alkalosis; โ pH) โ โ sites available for albumin to bind โ โ Ca (hypocalcemia)+
submitted by โseagull(1933)
This is a panic attack. Hyperventilation drops pCO2 leading to a respiratory alkalosis. po2 is relatively unaffected (don't ask me how?)