ABG Quality Control / Analyzers
What is the preferred site for arterial blood gas sampling because of the collateral circulation from the ulnar artery?
Radial Artery
Made of silver /silver chloride (Ag / AcCI)
Electrodes
A resistance that ventricles must pump against to eject blood.
Afterload
It is a regular, healthy heart rhythm that originates in the sinus node.
Normal Sinus Rhythm (NSR)
Abnormal heart rhythms originated from the ventricles
Ventricular Arrhythmias
Which ABG site has the greatest complication risk and will only be performed on extremely low BP (60/40)?
Femoral Artery
A pH reference electrode
Sanz
The bottom of the heart is approximately the level of the 5th intercostal space.
Apex of the heart
HR >100 bpm, looks like NSR, but the SA node is firing faster than usual.
Sinus Tachycardia
Premature ventricular contraction and common ventricular arrhythmia.
PVC
Which ABG site is only reserved for newborns?
Umbilical Artery
A type of hypoxia with an oxygenation problem?
Hypoxic Hypoxia
Are the lower chambers of the heart.
Ventricles
Heart rate increases and decreases with respiratory rate, and irregular spacing between narrow QRS is usually caused by medication side effects.
Sinus Arrhythmia
All PVC originate from one irritable spot.
Unifocal PVC
What kind of test is used to check for collateral circulation of the radial artery?
Allen’s Test
A non-invasive procedure to measure blood hemoglobin saturation (SpO2)
Pulse Oximetry
An absence of heart rhythm.
Arrhythmia
The atria contract early due to irritation, but not dangerous unless >6 per minute.
Premature Atria Complex (PAC)
Two unifocal PVC occurring consecutively.
Couplet PVC
How long does it need to wait for oxygen changes in COPD patients?
30 minutes
Define the following ABG values: pH 7.11, PaCo2 30, Pao2 83, HCo3 13
PCMAC w/ Normal o2
What indicates the need for an EKG?
Presence of arrhythmias
P-wave takes on a “saw-tooth” pattern.
Atrial Flutter
Every other heartbeat is a PVC.
Bigeminy