CFRN Exam Questions with Correct Answers| Latest Update

CFRN Exam Questions with Correct Answers| Latest Update Guaranteed Success

Left coronary artery branches into
1. LAD (anterior portion of the heart, 2/3 of the septum, part of the lateral wall))
2. circumflex artery (primary lateral wall)



Right coronary artery supplies blood to the Rt atrium/ventricle, inferior aspect of the heart



V1 - V6 chest leads are characterized as precordial or unipolar leads



leads I, II, III are known as what type of leads? limb leads or bipolar leads



Peaked T waves indicates? if greater than 5mm hyperkalemia


Location of Inferior MI
Leads?

Artery? II, III, aVF
RCA


Location of Lateral MI
Leads?

Artery? I, aVL, V5, V6
Circumflex


Location of Septal MI
Leads?

Artery? V1, V2
LAD

, Location of Anterior MI
Leads?

Artery? V3, V4
LAD


Location of Posterior MI
Leads?

Artery? reciprocal changes in V1-V3, tall R waves, elevation in V6
RCA
Circumflex



Ekg changes in WPW short PR interval (<0.12)
Delta wave



When is an Osborn wave present? Hypothermia
Afib



What EKG changes are seen in hypokalemia? U waves
Flattened T waves
Peaked P waves



When is a Dig Dip present on an EKG? Digitalis toxicity



What is the order of blood flow through the heart valves? Toliet Tricusopid
Paper Pulmonic
My Mitrial