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Flashcards in False measurements in thermodilution Deck (11)
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1
Q

Normal cardiac output:

A

4-6.5 L/min

2
Q

What does the thermodilution technique measure?

A

It measures RV output and pulmonary artery blood flow

3
Q

What are some assumptions being made when you use the thermodilution catheter?

A

Flow is constant
blood volume is constant (no rapid IV fluid admin)
Volume and temp of injectate is correct
No intracardiac shunts
No significant tricuspid or pulmonic valve regurgitation

4
Q

What does this do to the thermistor reading: Small injectate volume

A

False increase with small injectate volume

5
Q

What does this do to the thermistor reading: Increased temperature of injectate

A

False increase with increased temp of injectate

6
Q

What does this do to the thermistor reading: Thrombus on thermister

A

False increase with thrombus

7
Q

What does this do to the thermistor reading: Very low cardiac output state

A

False increase with low CO

8
Q

What does this do to the thermistor reading: Large injectate volume

A

False decrease with large injectate

9
Q

What does this do to the thermistor reading:: Decreased temperature

A

False decrease with decreased temperature

10
Q

What does this do to the thermistor reading: Inflation cycle of lower limb sequential compression devices:

A

False decrease with inflation of SCDs

11
Q

What does this do to the thermistor reading: Rapid continuous infusion of IV fluid secondary to cooling effect on blood

A

False decrease with continuous infusion

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