|1. Check that the
thermodilution catheter is positioned properly in the
pulmonary artery (PA) and that balloon is deflated.
||1. There is a
possibility of ventricular dysrhythmias because of
current leakage if thermister is in right ventricle
and connected to computer.
|2. Configure the
monitor for C.O. measurements:
a. Auto mode: on
volume: 5 or 10 cc
1. Baxter or 2. Other
e. Size (5,
6, 7, 7.5, or 8)
|2. Cardiac output
measurements will be inaccurate if information in
computer differs from what is on the patient. Consult
manufacturers insert on PA catheters for
appropriate computation constant.
|3. Ensure that the
closed injectate system is attached to the stopcock
of the proximal port on the PA catheter.
||3. Cardiac output
measurements will be inaccurate if connected to wrong
|4. Withdraw 5 or 10cc
of injectate into closed system syringe.
||4. The amount used
must be exact or output measurements are inaccurate.
D5W is usually used; however, NS may be used if
glucose tends to be of concern.
|5. Observe for
"Inject when ready" message displayed.
Inject bolus as rapidly as possible (no slower than
||5. If the bolus is
given too slowly an inaccurate output will be
|6. Obtain average of
three sequential measurements.
||6. Each should be
within 10% of the median.