CCRN : Identifying, Monitoring, Providing Care, and Administering Medication to Treat Cardiovascular Diseases

Study concepts, example questions & explanations for CCRN

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Example Questions

Example Question #1 : Clinical Competencies

Atrial septal defects allow blood to be shunted between the left and right atria. The most common atrial septal defect is:

Possible Answers:

none of the given answers are correct

sinus venosus

ostium secundum

ostium primum

Correct answer:

ostium secundum

Explanation:

There are typically three types of atrial septal defects: ostium secundum, sinus venosus, and ostium primum. Of the three, ostium secundum, which occurs around the region of the foramen ovale, is the most common.

Example Question #1 : Clinical Competencies

Direct-acting vasodilators that are smooth muscle relaxants include which of the following medications?
I. Nitroglycerin
II. Furosemide
III. Nitroprusside

Possible Answers:

I and II only

III only

II only

I and III only

Correct answer:

I and III only

Explanation:

Smooth muscle relaxants that are direct-acting vasodilators include nitroprusside and nitroglycerin. These medications, which are used in the treatment of heart failure, work to reduce cardiac filling pressures and dilate coronary arteries. Furosemide is a loop diuretic.

Example Question #1 : Identifying, Monitoring, Providing Care, And Administering Medication To Treat Cardiovascular Diseases

The two specialized cell types contained within the sinoatrial (SA) node:

Possible Answers:

border zone cells and specialized pacemaker cells

specialized pacemaker cells and cardiomyocytes

cardiomyocytes and border zone cells

chondrocytes and border zone cells

Correct answer:

border zone cells and specialized pacemaker cells

Explanation:

The sinoatrial (SA) node contains two specialized cell types: border zone cells and specialized pacemaker cells. Cardiomyocytes are heart muscle cells, and chondrocytes are cartilage producing cells.

Example Question #1 : Ccrn

Which of the following is NOT a measurement on an arterial blood gas (ABG) analysis?

Possible Answers:

pH

arterial partial pressure of carbon dioxide (PaCO2)

fraction of inspired oxygen (FiO2)

bicarbonate ion (HCO3-)

Correct answer:

fraction of inspired oxygen (FiO2)

Explanation:

Arterial blood gas (ABG) analysis includes five measurements: pH, arterial partial pressure of carbon dioxide (PaCO2), bicarbonate ion (HCO3-), arterial partial pressure of oxygen (PaO2), and base excess (BE). Fraction of inspired oxygen (FiO2) is not apart of an ABG analysis.

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