« previous next »

Author Question: Which of the following represents the port on a pulmonary artery catheter used to take measure-ments ... (Read 6 times)

roselinechinyere27m

  • Hero Member
  • *****
  • Posts: 557
on: Jul 16, 2018
Which of the following represents the port on a pulmonary artery catheter used to take measure-ments that estimate right-ventricular end-diastolic pressure?
 
  a. Distal c. Proximal
  b. Balloon d. Thermistor

Question 2

Systemic vascular resistance is 1700 dynes cm5. Which of the following is consistent with this value?
 
  a. Elevated left-ventricular af-terload c. Decreased left-ventricular pre-load
  b. Elevated right-ventricular afterload d. Decreased right-ventricular preload


zenzy

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: C
The proximal port of a pulmonary artery catheter rests in the right atrium and is used to obtain central venous pressure. Central venous pressure is used to estimate the right-ventricular end-diastolic pressure. The distal port is used to measure pulmonary artery pressure. The distal port is also used to measure the pulmonary artery wedge pressure, which is an estimation of left-ventricular end-diastolic pressure. The thermistor is used to measure cardiac output.

Answer to Question 2

ANS: A
The normal range for systemic vascular resistance is 900 to 1500 dynes cm5. Preload is defined as the filling pressure of the ventricles at the end of ventricular diastole. Afterload represents the resistance the ventricles must overcome to eject blood. Therefore, an elevated systemic vascular resistance would cause an elevated left-ventricular afterload.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

) IV bolus administration. (b) the drug is administered through the port using a needleless syring ) IV bolus administration. (b) the drug is administered through the port using a needleless syring
Types of catheters: Indwelling (Foley) catheter. Types of catheters: Indwelling (Foley) catheter.
Sociologists use income, education, and occupational prestige to measure social class. For most ... Sociologists use income, education, and occupational prestige to measure social class. For most ...
Typical port fuel-injection system, indicating the location of various components. Notice that the ... Typical port fuel-injection system, indicating the location of various components. Notice that the ...
Cross section of a typical port fuel-injection nozzle assembly. These injectors are serviced as an ... Cross section of a typical port fuel-injection nozzle assembly. These injectors are serviced as an ...
How to determine if a table of values represents a linear or quadratic relationship How to determine if a table of values represents a linear or quadratic relationship
Video: A timeline of the teeth (Explained - No Audio)

For a complete list of videos, visit our video library