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normal hemodynamics
practice quiz normal hemodynamics
Question | Answer |
---|---|
True or false normally the RA mean equals the RV EDP | True |
If the RA is lower than the RV | Transducer is calibrated wrong. This is impossible |
Are there any Awaves in atrial fibrillation? | No |
Right atrial a wave pressure Is 8, vzwave pressure is 6, x descent is 0 and y descent is 1. What is the mean pressure? | 8+0รท2=4 |
The formula for an atrial mean pressure is | High plus low divided by 2 |
What normal positive atrial pressure wave follows the QRS complex and coincides with ventricular contraction? | V wave |
What valvular event is most closely associated with the dicrotic notch on the PA pressure tracing? | Closure of pulmonic valve |
Comparing normal AO pressure to the LV waveforms, is the following true or false? AO systolic is normally 20 mmHg lower than LV systolic | False- This signifies aortic stenosis |
Which of the following pressures is normally the lowest? AO diastolic; LA mean; PCW-c waves; LV mean; LV early diastole | LV early diastole |
True or False: PCW mean is higher than RA mean in normal patients | True |
True or False: Left heart pressure s higher than Right heart pressure in normal patients | True |
Absence of a-waves in the LA waveform is consistent with | Atrial fibrillation |
AO systolic is 120, AO diastolic is 80. What is the mean pressure? | 120 + 160 / 3 = 93 |
The difference between an arterial systolic and diastolic pressure is called a/an: | pulse pressure |
What are we looking for when we sample the arterial systolic and diastolic pressures? | Valve regurgitation |
What is normal pulse pressure? | Around 40 |
If both systolic and diastolic are down? | No regurgitation |
Respiratory variation is normal in: | PCW |
Checking for differences between the RA and RV pressures would tell you about problems with the: | Tricuspid valve |
True or false:The normal oxygen saturation of blood drawn from the pulmonary capillary wedge position is 70% | False it should be about 100% |
True or false: "The lowest pressure of all right heart waveforms is the x descent of the RA. It should be zero." | False - RV DIASTOLIC should go down to zero |
Which of the following is a normal MEAN PA pressure?: 4 mm Hg; 18 mm Hg; 30 mm Hg; 50 mm HG | 18 mmHg |
Normal PA systolic/diastolic? | 25/15 |
What valvular event is most closely associated with the C-wave on the PAOP pressure tracing? | Closure of the mitral valve |
What is another term for PAOP | PCW |
Your patient Ms Ada Bunch, a marketing manager for Chiquita Banana, has a pressure recorded as: -/15/12. This is most likely a normal | PCW/ atrial fibrillation |
The new cardiology fellow, Dr. Blankmeind, hands you a blood sample taken from the SVC. What do you expect the oxygen saturation to be? | 60-70% |
Which of the following pressure tracings is impossible to obtain?: Simultaneous LV/AO; RA to RV insertion; PA to RV pullback; Simultaneous AO/ Femoral artery; LV to PCW pullback | LV to PCW pullback - impossible |
To detect stenosis of the tricuspid valve, sample: | RV to RA pullback |
If youre looking for COPD | sample PCW to PA pullback |
To detect pulmonic valve stenosis: | PA to RV pullback |
To detect mitral stenosis or LV regurgitation: | Simultaneous LV/PCW |
A pressure difference between RV systolic and PA systolic is: | A gradient |
What dampens the waveform? | Bubbles |
What causes catheter whip? | too much vibration on the catheter |
What is the most important hemodynamic measurement in assessing ventricular failure? | EDP |