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Author Question: Which size of needle should be used to draw arterial blood from an adult? a. 22 gauge c. 26 gauge ... (Read 164 times)

moongchi

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on: Jul 16, 2018
Which size of needle should be used to draw arterial blood from an adult?
 
  a. 22 gauge c. 26 gauge
  b. 24 gauge d. 28 gauge

Question 2

The purpose of an Allen test is to check blood flow in the _____ artery. 1. ulnar 2. radial 3. brachial 4 posterior tibial 5. lateral plantar
 
  a. 1, 2, and 3 c. 1, 4, and 5
  b. 2, 3, and 4 d. 3, 4, and 5


stano32

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

ANS: B
Blood samples from adult patients should be obtained with 23- to 25-gauge needles.

Answer to Question 2

ANS: C
An Allen test should always be done before a radial artery puncture is performed to ensure that there is collateral circulation in the ulnar artery. An Allen type of test should be performed to en-sure collateral circulation in the posterior tibial and lateral plantar arteries when drawing arterial blood from the dorsal artery of the foot.


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