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Author Question: When is capillary blood gas sampling indicated? a. There is a need for direct analysis of blood ... (Read 52 times)

wrbasek0

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on: Jul 16, 2018
When is capillary blood gas sampling indicated?
 
  a. There is a need for direct analysis of blood oxygenation.
  b. Normal noninvasive monitor readings need to be checked.
  c. ABG analysis is needed, but arterial ac-cess is not available.
  d. Continuous data on patient ventilation status are needed.

Question 2

Warming a capillary bed to 42 C has which of the following effects? 1. It constricts the underlying blood vessels. 2. It increases blood flow well above tissue needs. 3. It arterializes the capillary blood.
 
  a. 1 and 2 only
  b. 1 and 3 only
  c. 2 and 3 only
  d. 1, 2, and 3


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ndhahbi

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Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: C
To guide practitioners in providing quality care, the AARC has published Clinical Practice Guideline: Capillary Blood Gas Sampling for Neonatal and Pediatric Patients. Modified excerpts from the AARC guideline appear on p. 379.

Answer to Question 2

ANS: C
Warming the skin (to approximately 42 C) causes dilation of the underlying blood vessels, which increases capillary flow well above tissue needs. Blood gas values resemble those in the arterial circulation. This is why a sample obtained from a warmed capillary site is often referred to as arterialized blood.


wrbasek0

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Reply 2 on: Jul 16, 2018
Gracias!

bitingbit

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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