Arterial Blood Collection Flashcards
Not a routine duty for phlebotomists and is not for beginners
Arterial Puncture
Arterial blood is primarily requested for evaluation of blood gases (oxygen and carbon dioxide). True or False
True
Arterial blood is can be requested for the measurement of lactic acid and ammonia. True or False
True
Arterial puncture training includes precautions taken to ensure a safe procedure, sample handling procedures to prevent alteration of test results, correct puncture technique, and supervised puncture performance. True or False
True
Measures the ability of the lungs to provide oxygen to the blood and to remove carbon dioxide from the blood and exhale it.
ABG Test
ABG Test is best done during the steady-state. True or False
True
Arterial blood is collected and transported in specially prepared syringes. Specimens are introduced directly into blood gas analyzers from the collection using a syringe. True or False
True
Arterial blood collection kits contain preanticoagulated syringes with hypodermic needles a safety shield and a tightly fitting cap for the Luer tip of the syringe after being removed. True or False
True
For arterial puncture, CLSI recommended that syringes should be a glass with freely moving plungers and contain an appropriate anticoagulant. (Heparin is the anticoagulant of choice) True or False
False - plastic syringe
Acceptable needles range from 16 to 20 gauge and are 5/8 to 1 1⁄2 inches long. True or False
False - 20 to 25
When samples cannot be tested within 5 minutes, glass syringes must be used and should be lubricated and heparinized prior to use.
False - within 3 minutes
A container of crushed ice helps in maintaining sample integrity. True or False
True
Steady-state refers to refraining from doing exercise for at least 20 – 30 minutes before obtaining the sample. True or False
True
To be acceptable as a puncture site, an artery must be small enough to accept at least a 25 gauge needle. True or False
False - large enough to accept at least a 25 gauge needle
The artery is much preferred located near the skin surface so that deep puncture is not required. True or False
True
What artery has these advantages:
- Good collateral circulation
- Easy to palpate
- Less chance of hematoma formation
Radial Artery
What artery has these advantages:
- Large and relatively easy to palpate and puncture
- Sometimes the preferred artery for a large volume of blood
- Adequate collateral circulation
Brachial Artery
The largest artery used, generally used for emergency and performed primarily by Physician
Femoral Artery
Scalp and Umbilical arteries are can be used for infants. True or False
True
Dorsalis pedis arteries are can be used as an alternative for adults. True or False
True
Measures arterial competency, and should be performed before taking an arterial sample.
Modified Allen Test Procedure
In assessing the results of the modified allen test, the hand should be flushes pink within 15 minutes. True or False
False - 15 seconds
Administer anesthetic if necessary (numb the area with 1% epinephrine free lidocaine). True or False
True
It is important to check the ulnar pulse after the puncture. True or False
False - radial pulse
Sample integrity may be compromised if it fails to analyze the sample in a
timely manner. True or False
True
A temporary constriction of the artery
CHOICES:
Vasovagal response, Arteriospasm, HemorrhagE, Thrombus formation
Arteriospasm
sudden loss of consciousness after the puncture
Vasovagal response
Patients with coagulation disorder are prone to this
Hemorrhage
Exposure of blood as little as 10 to 30 seconds can significantly alter the results of blood gases. True or False
True
The arterial puncture site is more likely to bleed than a venipuncture site because of the higher blood pressure in the arteries. True or False
True
The use of too much/too little heparin is a sampling error. True or False
True
It doesn’t need to remove the air bubbles. True or False
False - it needs to be removed since it will cause a sampling errror
