Barron/Elsevier CCRN practice test
questions 2025 with Answers
ADH - ANSWER-Phenytoin inhibits _______ secretion
Right - ANSWER-Most episodes of aspiration result in (right/left) lung infiltrates.
urine creatinine clearance - ANSWER-Best indicator of GFR
Auto-PEEP - ANSWER-In a vented patient with status asthmaticus, check for
_______________
Air trapping - ANSWER-An increase in auto-PEEP is a sign of
_________________.
obstructive pulmonary disease - ANSWER-A patient with a flattened diaphragm
on a Chest X-ray and decreased expiratory flow rate most likely has what type of
disease?
II and V1 - ANSWER-____ and ______ are the two best P wave leads.
wide, notched P waves - ANSWER-What is a manifestation of left atrial
enlargement on an EKG in lead II?
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
,normal - ANSWER-Diphasic P waves in lead V1 on 12-lead EKG are
abnormal/normal.
myoglobin - ANSWER-_________ is the earliest cardiac biomarker for a MI
(elevated within 3hrs s/p MI) and is nonspecific.
pleurodesis - ANSWER-injection of a sclerosing agent into the pleural space and is
used for pleural effusion
LAD - ANSWER-The__________ coronary artery supplies the bundle of His and
bundle branches
anterior (LAD affected) - ANSWER-_____________ MIs may cause blocks of
the bundle of His or bundle branches
Right Coronary Artery (RCA)... LCA in 10% of ppl - ANSWER-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)
sinus - ANSWER-the ____________ node is supplied by the RCA in 55% of ppl
and LCA in 45%
pale and shiny - ANSWER-The skin changes associated with chronic peripheral
arterial disease
pain, pallor, pulselessness, paresthesia, paralysis, and polar (cold) - ANSWER-what
are the 6 Ps of acute arterial occlusion?
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
,less - ANSWER-There is (more/less) risk of burning of the skin with biphasic
waveform defibrillation than with monophasic.
necrosis - ANSWER-adding too much air to a ETT cuff can cause overinflation
and tracheal ______________.
myocardial infarction (MI) - ANSWER-What is the most common cause of death
after vascular surgery?
CAD - ANSWER-Because atherosclerosis does not occur in one vessel, patients
requiring vascular surgery are likely also to have
___________________________.
dissecting aortic aneurysm - ANSWER-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.
left - ANSWER-A wide, notched P wave is an indication of ________ atrial
enlargement.
P mitrale - ANSWER-Left atrial enlargement causes the P wave to be wide (greater
than 0.1 second) and notched. This sometimes is referred to as ___ __________.
mitral - ANSWER-___________ valve stenosis causes LA enlargement and wide,
notched P Waves
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 3
, RCA (as seen in inferior wall MIs) - ANSWER-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
left - ANSWER-The anterolateral heart wall is supplied by the ______ coronary
artery
right - ANSWER-The SA node and the atrioventricular (AV) node are supplied by
the ________ coronary artery in most hearts.
AV - ANSWER-second degree Type I AV block is located anatomically at the
_____ node
Bundle of His - ANSWER-Second degree AV block Type II is located
anatomically at the ________________.
junctional escape - ANSWER-A third-degree AV heart block would have to be
blocked above the bundle of His to have what kind of rhythm?
erythropoietin (EPO) - ANSWER-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
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. - ANSWER-How does COPD result
in atrial fibrillation and predisposition to PEs?
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 4
questions 2025 with Answers
ADH - ANSWER-Phenytoin inhibits _______ secretion
Right - ANSWER-Most episodes of aspiration result in (right/left) lung infiltrates.
urine creatinine clearance - ANSWER-Best indicator of GFR
Auto-PEEP - ANSWER-In a vented patient with status asthmaticus, check for
_______________
Air trapping - ANSWER-An increase in auto-PEEP is a sign of
_________________.
obstructive pulmonary disease - ANSWER-A patient with a flattened diaphragm
on a Chest X-ray and decreased expiratory flow rate most likely has what type of
disease?
II and V1 - ANSWER-____ and ______ are the two best P wave leads.
wide, notched P waves - ANSWER-What is a manifestation of left atrial
enlargement on an EKG in lead II?
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
,normal - ANSWER-Diphasic P waves in lead V1 on 12-lead EKG are
abnormal/normal.
myoglobin - ANSWER-_________ is the earliest cardiac biomarker for a MI
(elevated within 3hrs s/p MI) and is nonspecific.
pleurodesis - ANSWER-injection of a sclerosing agent into the pleural space and is
used for pleural effusion
LAD - ANSWER-The__________ coronary artery supplies the bundle of His and
bundle branches
anterior (LAD affected) - ANSWER-_____________ MIs may cause blocks of
the bundle of His or bundle branches
Right Coronary Artery (RCA)... LCA in 10% of ppl - ANSWER-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)
sinus - ANSWER-the ____________ node is supplied by the RCA in 55% of ppl
and LCA in 45%
pale and shiny - ANSWER-The skin changes associated with chronic peripheral
arterial disease
pain, pallor, pulselessness, paresthesia, paralysis, and polar (cold) - ANSWER-what
are the 6 Ps of acute arterial occlusion?
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
,less - ANSWER-There is (more/less) risk of burning of the skin with biphasic
waveform defibrillation than with monophasic.
necrosis - ANSWER-adding too much air to a ETT cuff can cause overinflation
and tracheal ______________.
myocardial infarction (MI) - ANSWER-What is the most common cause of death
after vascular surgery?
CAD - ANSWER-Because atherosclerosis does not occur in one vessel, patients
requiring vascular surgery are likely also to have
___________________________.
dissecting aortic aneurysm - ANSWER-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.
left - ANSWER-A wide, notched P wave is an indication of ________ atrial
enlargement.
P mitrale - ANSWER-Left atrial enlargement causes the P wave to be wide (greater
than 0.1 second) and notched. This sometimes is referred to as ___ __________.
mitral - ANSWER-___________ valve stenosis causes LA enlargement and wide,
notched P Waves
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 3
, RCA (as seen in inferior wall MIs) - ANSWER-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
left - ANSWER-The anterolateral heart wall is supplied by the ______ coronary
artery
right - ANSWER-The SA node and the atrioventricular (AV) node are supplied by
the ________ coronary artery in most hearts.
AV - ANSWER-second degree Type I AV block is located anatomically at the
_____ node
Bundle of His - ANSWER-Second degree AV block Type II is located
anatomically at the ________________.
junctional escape - ANSWER-A third-degree AV heart block would have to be
blocked above the bundle of His to have what kind of rhythm?
erythropoietin (EPO) - ANSWER-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
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. - ANSWER-How does COPD result
in atrial fibrillation and predisposition to PEs?
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 4
