Lesson 10 - Arterial Blood Collection Flashcards
Fill-in-the-blanks: Arterial blood is rich in ___ and _____, can manage oxygen, electrolytes, and ___-____ balance also known as (pH).
oxygen, electrolytes, acid-base
Fill-in-the-blank:
Arterial blood testing includes: ___ level, ___ acid level, and ___arterial ___ gases also known as (ABGs)
Ammonia levels, lactic acid level, and arterial blood gases
ABGs measures what 3 levels in the blood
pH levels, oxygen, and carbon dioxide
Arterial blood draws or ABGs are necessary for what type of patients?
Critical patients
What are the pieces of equipment you need for a arterial puncture?
A 1-5mL, pre-heparinized syringe, analcohol prep pads or iodine for cleansing, gauze, bandages, pressure bandage, water and ice mixture, collection tubes, and a 21-22G needle with a safety device and luer tip
For which types of blood test specimens would need to sit in an ice slurry bath after drawing?
Ammonia and lactic acid specimens
Which arteries are the most commonly used for blood draws?
A Brachial
B Radial
C Ulnar
D Both A and B
D. Both A and B most mostly B
What is the modified Allen test used for?
To determine collateral circulation distal and prior to collection
State the 5 modified Allen Test steps
- Observe so that the drawing sit is not inflamed, irritated, or wounded
- Locate the pulses of each artery by compressing them and having the patient open and close the fist
- Positive results are: The palm brings color, then release the ulnar artery, observe color again
- Negative results are: no color appears after releasing the artery for 5-10 secs
- If positive results, proceed with drawing
What 2 arteries are used for the modified Allen test?
Radial and ulnar
What is blanching seen after the patient opens and closes their fist repeatedly?
The area becomes lighter
Hemorrhage, arteriospasm, embolism, and thrombosis are all major arterial complications when drawing from an artery.
True or false?
True, all of the above.
ABGs can be left out after collection for how long until you will have to put it in the ice slurry?
15-30 minutes
What are some reasons for specimens to be rejected by the lab?
-air bubbles in specimen
-inadequate specimen
-use of wrong syringe
-specimen clotting
-too long time between draw & delivery
-improper labeling
-ice slurry not used
What is the artery in the groin above the thigh?
Femoral artery
Define embolism
An obstruction in a blood vessel.
Alternative to arterial blood gases (ABGs).
Capillary blood gases
What are the PPE items you MUST put on while performing a arterial puncture?
Gloves, fluid resistant gown, face mask/protection
One of the most common reason for post-procedure complications is due to poor patient preparation.
True or flase?
True
Why is a specimen for a potassium test not placed in an ice slurry?
The specimen is altered by lower temperatures
An ABG is performed after the site is cleaned with an antiseptic using…
Both alcohol and povidone iodine
Arterial blood gas specimens can be kept at room temperature for 15 to 20 minutes.
True or false?
True, Arterial blood gases can be kept at room temperature after collection for 15 to 20 minutes; if the specimen is not delivered to the laboratory within that time, it is placed in an ice slurry for up to one hour.
When should a capillary arterial blood gas be performed instead of an arterial blood gas?
In an infant
