Quiz

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Which of the following factors affects venous return the most?

Infection at Proposed Site

Central Venous Cannulation

Gravity

Pumping Action of the Heart (correct)

What is the purpose of monitoring central venous pressure (CVP)?

To assess the risk of pneumothorax

To monitor fluid and electrolyte levels (correct)

To measure blood pressure in the limbs

To insert a pulmonary artery catheter

Which of the following best describes central venous pressure (CVP)?

The pressure of blood in the pulmonary artery

The pressure of blood in the vena cava as it returns to the heart (correct)

The pressure of blood in the left ventricle

The pressure of blood in the aorta

Which of the following is an indication for central venous cannulation?

Administration of blood and blood components Signup and view all the answers

What does CVP indirectly reflect?

The amount of blood volume returning to the heart Signup and view all the answers

Which of the following is a contraindication for central venous cannulation?

Infection at proposed site Signup and view all the answers

Which chamber pressure is a major determinant of right ventricular end diastolic volume (RVEDV)?

Right atrium Signup and view all the answers

What are the two lengths of catheters commonly used for central venous access?

60 cm and 70 cm Signup and view all the answers

What is the mean pressure in the right atrium?

65 to 80 mmHg Signup and view all the answers

What is the purpose of central venous cannulation?

To administer parenteral nutrition Signup and view all the answers

What is the mean pressure in the left ventricle?

90 to 140 mmHg Signup and view all the answers

What should be considered when selecting the insertion site for central venous cannulation?

Both the ease of placement and the risks associated with the procedure Signup and view all the answers

What is the mean pressure in the aorta?

90 to 140 mmHg Signup and view all the answers

What does CVP provide a direct means of assessing?

Right heart function Signup and view all the answers

Which of the following factors can increase central venous pressure (CVP)?

Decreased cardiac output Signup and view all the answers

What is the equation that relates left ventricular end diastolic pressure (LVEDP) to right ventricular end diastolic pressure (RVEDP)?

LVEDP = 2RVEDP + 2 Signup and view all the answers

Which of the following is true about the relationship between right atrial pressure (RAP) and venous return?

When RAP falls, venous return pressure increases Signup and view all the answers

What is the balance achieved by Starling's law in the circulatory system?

Balance between venous return and cardiac output Signup and view all the answers

What is the primary mechanism by which the musculo-venous pump promotes venous return?

Contraction of limb muscles during normal locomotion Signup and view all the answers

Which of the following factors can decrease central venous pressure (CVP)?

Hypovolemia Signup and view all the answers

What is the equation that relates left ventricular end diastolic pressure (LVEDP) to central venous pressure (CVP)?

LVEDP = CVP + 2 Signup and view all the answers

Which one of these central venous access sites is associated with a lower risk for infection?

Subclavian Signup and view all the answers

Which central venous access site is associated with a low rate of severe mechanical complications in the intensive care unit?

Internal Jugular Signup and view all the answers

Which central venous access site has the advantage of easier access?

External Jugular Signup and view all the answers

Which central venous access site has the advantage of a relatively short/direct pathway for the catheter?

Internal Jugular Signup and view all the answers

Which central venous access site is associated with a higher risk for infection and thrombosis?

Femoral Signup and view all the answers

Which central venous access site has the advantage of being readily available and has been used by clinicians for central access longer than any other site?

Femoral Signup and view all the answers

Which central venous access site has the advantage of no risk of pneumothorax or major hemorrhage?

Antecubital Site Signup and view all the answers

Which central venous access site has the disadvantage of being difficult to locate in obese or edematous patients?

Antecubital Site Signup and view all the answers

Which central venous access site has the disadvantage of a difficult advancement of catheter to central veins and may not be large enough to accept large-lumen catheter?

Antecubital Site Signup and view all the answers

Quiz

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Questions and Answers

Which of the following factors affects venous return the most?

What is the purpose of monitoring central venous pressure (CVP)?

Which of the following best describes central venous pressure (CVP)?

Which of the following is an indication for central venous cannulation?

What does CVP indirectly reflect?

Which of the following is a contraindication for central venous cannulation?

Which chamber pressure is a major determinant of right ventricular end diastolic volume (RVEDV)?

What are the two lengths of catheters commonly used for central venous access?

What is the mean pressure in the right atrium?

What is the purpose of central venous cannulation?

What is the mean pressure in the left ventricle?

What should be considered when selecting the insertion site for central venous cannulation?

What is the mean pressure in the aorta?

What does CVP provide a direct means of assessing?

Which of the following factors can increase central venous pressure (CVP)?

What is the equation that relates left ventricular end diastolic pressure (LVEDP) to right ventricular end diastolic pressure (RVEDP)?

Which of the following is true about the relationship between right atrial pressure (RAP) and venous return?

What is the balance achieved by Starling's law in the circulatory system?

What is the primary mechanism by which the musculo-venous pump promotes venous return?

Which of the following factors can decrease central venous pressure (CVP)?

What is the equation that relates left ventricular end diastolic pressure (LVEDP) to central venous pressure (CVP)?

Which one of these central venous access sites is associated with a lower risk for infection?

Which central venous access site is associated with a low rate of severe mechanical complications in the intensive care unit?

Which central venous access site has the advantage of easier access?

Which central venous access site has the advantage of a relatively short/direct pathway for the catheter?

Which central venous access site is associated with a higher risk for infection and thrombosis?

Which central venous access site has the advantage of being readily available and has been used by clinicians for central access longer than any other site?

Which central venous access site has the advantage of no risk of pneumothorax or major hemorrhage?

Which central venous access site has the disadvantage of being difficult to locate in obese or edematous patients?

Which central venous access site has the disadvantage of a difficult advancement of catheter to central veins and may not be large enough to accept large-lumen catheter?

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