80+ PRACTICE QUESTIONS & VERIFIED ANSWERS
COMPREHENSIVE STUDY GUIDE (2026)
CardioVascular Monitoring
, , and are used interchangeably to describe
the refilling of the ventricles.
- answer-relaxation, diastole, repolarization
, , and are used interchangeably to describe
the ejection of blood from the ventricles.
- answer-contraction, systole, depolarization
A standard PAC consists of....
- answer-a thermistor, an air channel, a proximal infusion port, a right atrial
port
A thermistor allows measurements of .
- answer-cardiac output
An air channel in the standard Pulmonary Artery Catheter (PAC) allows
for....
- answer-balloon inflation during floatation of the catheter and
measurement of wedge pressures
Atrial and ventricular rates are determined by counting the boxes between
- answer-two consecutive P or R waves and then dividing that number by
1,500
Duration of the QRS complex is measured from the
- answer-beginning of the Q wave to the end of the S wave
For electronic measurement of cardiac output through a PAC, a small
quantity of fluid (cooler than body temperature) is injected into the
atrium. A
thermistor located at the tip of the catheter measures the
in the blood passing the catheter tip. From this change,
the computer calculates the cardiac output.
- answer-right, degree of temperature change
, Interference or artifact in an ECG tracing may be caused by any of these
factors:
- answer-electrocautrey, faulty leads or wires, pads not adhering to the
patient's skin, lead wire motion
Normal CVP ranges from to mm Hg.
- answer-3, 8
On EKG, Asystole is represented by (and is also known as) a
- answer-flat line
On the EKG paper, the horizontal axis measures
and is recorded in increments of second for each small box.
- answer-time; 0.04 second
On the EKG paper, the vertical axis measures
- answer-voltage
Placing an arterial transducer too high will result in....
- answer-false low readings
Placing an arterial transducer too low will result in....
- answer-false high readings
ST and T-wave changes on the ECG can indicate .
- answer-myocardial ischemia
TEE
- answer-Transesophageal Echocardiogram
TEE has been show to....
- answer-correlate better than PAC readings with left ventricular preload
TEE is sensitive than ECG for detecting .
- answer-more, ischemia
TEE is one of the only intraoperative monitor that allows the clinician to
assess
function.
- answer-valvular