Dilution Methods for Cardiac Output and Blood Flow Monitoring Quiz

Which of the following characteristics is NOT true for the indicator used in dye-dilution methods?

What is the indicator used in dye-dilution methods?

Which device records the dye concentration in the blood after a known dye sample was injected upstream?

Which method is mostly used in dye dilution?

What is the advantage of the dye-dilution method?

What is a disadvantage of the dye-dilution method?

What is the currently most widely used technique for cardiac output monitoring?

How many measurements should be averaged in thermodilution for accurate results?

What is the acceptable difference between each of the three measurements in thermodilution?

Which of the following conditions is NOT suitable for the dye-dilution method?

Which imaging test uses sound waves to measure the frequency shift of a particular sample volume to determine the speed and direction of blood flow?

What is the advantage of thoracic electrical bioimpedence as a method of determining cardiac output?

Which technique uses computer algorithms to measure pulsatile changes in the conductivity of the thorax to determine stroke volume, cardiac output, myocardial contractility, and afterload?

Which factor(s) can affect the accuracy of thoracic electrical bioimpedence?

Which technique measures the mean velocity of blood flow by inducing voltage proportional to the velocity of motion in an electrical conductor?

Which technique is particularly useful in the cardiovascular setting and can be used to assess insufficient valves, left ventricular function, and ejection fraction?

Which factor(s) can affect the accuracy of Doppler ultrasound?

Which technique measures the velocity of a fluid with ultrasound to calculate volume flow?

Which technique uses electromagnetic induction to measure the mean velocity of blood flow?

Which technique is time consuming, requires bulky equipment, and an experienced operator?

Which equation represents the computation of cardiac output using the thermodilution method?

Which of the following is true about the ideal thermodilution curve?

Which of the following patient-generated errors can affect the accuracy of thermodilution?

Which of the following technique-generated errors can affect the accuracy of thermodilution?

Which of the following is a disadvantage of thermodilution?

Which of the following is a parameter measured by the FloTrac system?

What is the formula used by the FloTrac system to calculate cardiac output?

Which of the following methods is considered noninvasive for measuring cardiac output?

Which method of measuring cardiac output assesses blood flow velocity?

Which of the following is an advantage of the FloTrac system?