ABG Quality Control/Analyzers
What is the primary contraindication for conducting an ABG?
Negative Allen’s Test
Where is bicarbonate excreted and reabsorbed?
The kidneys
Where is the apex of the heart located?
What does P-P and R-R represent?
P-P = Atrial
R-R = Ventricle
Frequent PVC’s means what?
What is the pH electrode also referred to as?
Sanz electrode
Where is oxygen dissolved?
The Plasma
What is atrial kick?
Blood pushed into the already full ventricles as a result of atrial contraction.
What are the 7 PVC’s?
Unifocal, multifocal, couplet, bigeminy, trigeminy, quadrigeminy, R on T syndrome
What type of hypoxia presents CO poisoning?
Anemic Hypoxia
What does the “p” and “h” stand for in pH?
p = potential
H = hydrogen
What is the absolute refractory period?
the point where cardiac cells cannot be stimulated to conduct an Electrical impulse regardless of stimulus strength.
What is a sinus exit block?
SA fires normally and atria don’t contract.
What is the rate for ventricular tachycardia?
140 - 220 bpm
Your requires an ABG that recently underwent a mastectomy, what side do you draw the blood gas from?
Draw opposite side
A right shift of the oxygen disassociation curve represents….
Increased oxygenation at tissues
What is the difference between dromotropic effect and inotropic effect
Dromotropic effect- change in speed of conduction through AV junction
Inotropic effect- changes in myocardial contractility
What is the atrial rate of Atrial Flutter?
250 - 350 bpm
What happens in the R on T phenomenom?
Ventricles contact early during depolarization that it falls on peak of preceding T wave
What are 3 disadvantages in drawing an ABG from the femoral artery?
Close to femoral vein
No Collateral circulation
Can leak a liter of blood easily
Deeper (may cause clot to break off)
What are the three clinical treatments for RAC?
Improve ventilation
Relieve upper airway obstruction
Reversal of CNS depression
Define route of electrical impulse in the conduction system.
SA node emits electrical signal
Signal goes through atrial conductive tract
Atria contract
Signal goes through intra-nodal conductive tract to AV node
AV node transmits signal to bundle of HIS
Impulse travels down Left and right bundle branches to Purkinje fibers
Ventricles contract
What is Wolff-Parkinson-White syndrome?
Impulses don’t travel through AV node or bundle of His and the ventricles get excited earlier than normal
How do you classify a 2nd degree heart block type 2?
Series of nonconducted P waves followed by conducted P waves.