Barron/Elsevier CCRN practice test Questions and Answers well Explained Latest 2024/2025 Update 100% Correct.
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Barron/Elsevier CCRN
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Barron/Elsevier CCRN
How does COPD result in atrial fibrillation and predisposition to PEs? - COPD causes pulmonary
hypertension, right ventricular hypertrophy, and right atrial enlargement. The right atrial enlargement
causes stretching of the atrial tissue and frequently results in atrial dysrhythmias.
SA blocks, ...
Barron/Elsevier CCRN practice test
questions
How does COPD result in atrial fibrillation and predisposition to PEs? - COPD causes pulmonary
hypertension, right ventricular hypertrophy, and right atrial enlargement. The right atrial enlargement
causes stretching of the atrial tissue and frequently results in atrial dysrhythmias.
SA blocks, second-degree AV block type I, and third-degree AV heart block at the level of the AV node
would occur in _______________ occlusion - RCA (as seen in inferior wall MIs)
There is (more/less) risk of burning of the skin with biphasic waveform defibrillation than with
monophasic. - less
Type I AV block, also called Wenckebach, is a block at the AV node, and the AV node is supplied by the
___________________ (in 90% of people) - Right Coronary Artery (RCA)... LCA in 10% of ppl
Phenytoin inhibits _______ secretion - ADH
Most episodes of aspiration result in (right/left) lung infiltrates. - Right
Best indicator of GFR - urine creatinine clearance
In a vented patient with status asthmaticus, check for _______________ - Auto-PEEP
An increase in auto-PEEP is a sign of _________________. - Air trapping
A patient with a flattened diaphragm on a Chest X-ray and decreased expiratory flow rate most likely has
what type of disease? - obstructive pulmonary disease
____ and ______ are the two best P wave leads. - II and V1
,What is a manifestation of left atrial enlargement on an EKG in lead II? - wide, notched P waves
Diphasic P waves in lead V1 on 12-lead EKG are abnormal/normal. - normal
_________ is the earliest cardiac biomarker for a MI (elevated within 3hrs s/p MI) and is nonspecific. -
myoglobin
injection of a sclerosing agent into the pleural space and is used for pleural effusion - pleurodesis
The__________ coronary artery supplies the bundle of His and bundle branches - LAD
_____________ MIs may cause blocks of the bundle of His or bundle branches - anterior (LAD
affected)
the ____________ node is supplied by the RCA in 55% of ppl and LCA in 45% - sinus
The skin changes associated with chronic peripheral arterial disease - pale and shiny
what are the 6 Ps of acute arterial occlusion? - pain, pallor, pulselessness, paresthesia, paralysis,
and polar (cold)
adding too much air to a ETT cuff can cause overinflation and tracheal ______________. - necrosis
What is the most common cause of death after vascular surgery? - myocardial infarction (MI)
Because atherosclerosis does not occur in one vessel, patients requiring vascular surgery are likely also
to have ___________________________. - CAD
, The first diagnostic test should be a CXR film for probable diagnosis. The film would reveal a widening
mediastinum. An additional, more indicative finding would be calcified aortic knob with extension of the
aortic wall. - dissecting aortic aneurysm
A wide, notched P wave is an indication of ________ atrial enlargement. - left
Left atrial enlargement causes the P wave to be wide (greater than 0.1 second) and notched. This
sometimes is referred to as ___ __________. - P mitrale
___________ valve stenosis causes LA enlargement and wide, notched P Waves - mitral
The anterolateral heart wall is supplied by the ______ coronary artery - left
The SA node and the atrioventricular (AV) node are supplied by the ________ coronary artery in most
hearts. - right
second degree Type I AV block is located anatomically at the _____ node - AV
Second degree AV block Type II is located anatomically at the ________________. - Bundle of His
A third-degree AV heart block would have to be blocked above the bundle of His to have what kind of
rhythm? - junctional escape
The hypoxemia that results from COPD causes release of _______________ from the kidney, which
stimulates release of red blood cells from the bone marrow and polycythemia - erythropoietin
(EPO)
___________ are used primarily as antispasmodics in cath lab patients. - Nitrates
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