Arterial Blood Gas Sampling

What is the primary reason for performing arterial puncture?

To obtain blood for arterial blood gas tests (correct)
To diagnose diabetes
For routine blood tests
To manage electrolyte imbalance

What makes arterial blood a good specimen for evaluating respiratory function?

It is easy to collect
It is not sensitive to pre-analytical errors
It has high oxygen content and consistency of composition (correct)
It has low oxygen content

What is a disadvantage of arterial puncture compared to venipuncture?

It is less painful
It is technically easier
It is used for routine blood tests
It is potentially more painful and hazardous (correct)

What is a common use of arterial blood gas tests?

Diagnosing and managing respiratory disorders (B) Signup and view all the answers

Why are arterial blood gas tests sensitive to pre-analytical errors?

Because they are sensitive to the effects of pre-analytical errors (C) Signup and view all the answers

What can arterial blood gas tests provide information about?

Oxygenation, ventilation, and acid-base balance (A) Signup and view all the answers

What is the primary concern when selecting an arterial puncture site?

Presence of collateral circulation (B) Signup and view all the answers

Which of the following is a disadvantage of the radial artery?

Requires considerable skill to puncture (A) Signup and view all the answers

What is the primary reason for performing arterial puncture at the femoral artery?

It is primarily used in emergency situations or when no other site is available (A) Signup and view all the answers

What information is required on the test requisition for ABG specimen collection?

Current body temperature and respiratory rate (D) Signup and view all the answers

What is the purpose of using a sharp, short-bevel hypodermic needle for arterial puncture?

To facilitate easier arteriotomy (A) Signup and view all the answers

Which of the following personnel is NOT typically trained to perform arterial puncture?

Level I phlebotomist (D) Signup and view all the answers

What is the first step in the arterial puncture procedure?

Sanitize hands and don gloves (B) Signup and view all the answers

At what angle should the needle be inserted during arterial puncture?

30- to 45-degree angle (D) Signup and view all the answers

What is a potential hazard of arterial puncture?

All of the above (D) Signup and view all the answers

What should be done immediately after collecting the blood specimen?

Expel air bubbles, cap the syringe, and mix the specimen (D) Signup and view all the answers

What is a potential sampling error in arterial puncture?

All of the above (D) Signup and view all the answers

What should be done with the used and contaminated materials after the procedure?

Dispose of them properly (A) Signup and view all the answers

What is the purpose of the Modified Allen test?

To evaluate the patency of the radial and ulnar arteries (C) Signup and view all the answers

What should be done after administering the local anesthetic?

Wait 1 to 2 minutes before proceeding with the arterial puncture (B) Signup and view all the answers

What is the purpose of sanitizing hands and donning gloves?

To maintain infection control and prevent cross-contamination (B) Signup and view all the answers

What is the purpose of the radial ABG procedure?

To collect an arterial blood gas sample (A) Signup and view all the answers

What is the significance of the 'steady state' in the radial ABG procedure?

It refers to the stabilization of the patient's vital signs (B) Signup and view all the answers

What is the purpose of recording the results of the Modified Allen test?

To document the procedure on the requisition form (B) Signup and view all the answers