Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards
share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Patient Evaluation

Transcutaneous PO2 and PCO2 Measurement

QuestionAnswer
Transcutaneous PO2 and PCO2 Clark & Severinghaus Electrode - allows continuing non-invasive PO2 and PCO2 measurement by electrodes. - electrodes placed on the skin instead of single measurement with a blood sample.
Transcutaneous PO2 and PCO2 Clark & Severinghaus Electrode/Procedure - heating the skin around the electrode to 43-45C = - improves the capillary blood flow (perfusion) and enhance gas movement through the skin
Transcutaneous PO2 and PCO2 Clark & Severinghaus Electrode/Correlated Values - values correlate well with arterial values as long as perfusion is adequate.
Transcutaneous PO2 and PCO2 Clark & Severinghaus Electrode/Accuracy decrease - with increased skin thickness - anemia - conditions with decrease perfusion *shock burns * vascular disease * cardiac defects
Transcutaneous PO2 and PCO2 Clark & Severinghaus Electrode/Placement - best placement of the electrode is over flat areas with good perfusion - on chest beneath the center of R/L clavicle.
Transcutaneous PO2 and PCO2 Clark & Severinghaus Electrode/Care - the electrode should be changed every 4 hrs. - redness occur or blister = move electrode to new site.
Transcutaneous PO2 and PCO2 Clark & Severinghaus Electrode/Calibration - calibration is done on room air (PaO2 = 150 torr PaO2 = 0) with a zero solution. - unable to calibrate check: * torn membrane * poor connection - air leaks = TcPO2 = read higher than PaO2
Created by: sukar