Free Practice Quiz Question List

5 Hemodynamic Measurements and Interpretation Online Quiz Questions

Use this free practice quiz with 20 questions to review 5 Hemodynamic Measurements and Interpretation, test your knowledge, and prepare for your next test or exam.

20 questions

True or false

1 point

True or false: An ECG can show heart rate and rhythm, but it does not establish whether the resulting contractions produce adequate blood flow.

A
True
B
False

Fill in the blank

1 point

Cardiac output is calculated as heart rate multiplied by .

True or false

1 point

True or false: An elevated CVP in a patient receiving positive-pressure ventilation, by itself, proves excess circulating blood volume.

A
True
B
False

Choose one

1 point

A patient has a blood pressure of 110/70 mmHg and a heart rate of 125 beats/min, and is newly confused with cool extremities. Which interpretation is best?

A
The blood pressure rules out a low-flow state, so no reassessment is needed.
B
The heart rate alone establishes the cause of the patient's symptoms.
C
The blood pressure alone is not reassuring; the new findings warrant prompt reassessment and escalation according to local practice.
D
The findings prove that the patient is volume depleted.

Choose all

1 point

Select all findings that can be warning signs of deterioration and warrant assessment in the clinical context.

A
Urine output below 0.5 mL/kg/hour over time
B
New altered mentation
C
Cool or mottled skin
D
A stable oxygen saturation with no other change
E
Urine output that remains unchanged and adequate for the patient

Fill in the blank

1 point

Thermodilution cardiac-output measurements have limitations in some patients with valve regurgitation or intracardiac .

Choose one

1 point

Before interpreting an invasive pressure reading, which practice best helps ensure that the measurement is reliable?

A
Interpret the displayed number without checking the waveform if the catheter is connected.
B
Zero and level the transducer at the heart reference level and assess waveform quality.
C
Use different positioning for each measurement to reveal variation.
D
Assume a pressure reading is accurate whenever it is continuous.

Choose all

1 point

Select all accurate statements about dynamic measures of fluid responsiveness.

A
Changes in stroke volume or pulse pressure during a controlled maneuver can be more informative than a single static filling pressure.
B
Their usefulness depends on conditions such as rhythm, ventilation, and measurement method.
C
They are valid in every patient regardless of rhythm or ventilation.
D
A single CVP measurement reliably determines whether fluid will improve stroke volume.

Written response

1 point

Which oxygen saturation measurement reflects the balance of oxygen delivery and consumption and should not be treated as interchangeable with ScvO₂?

Open ended

1 point

Explain how cardiac index is calculated and why it can be more useful than cardiac output when comparing people of different body sizes.

Choose one

1 point

Which statement best describes bedside echocardiography as a hemodynamic monitoring technique?

A
It continuously measures pulmonary artery pressure without a catheter.
B
It assesses cardiac structure, function, and flow patterns, but is operator- and view-dependent and usually provides a snapshot.
C
It provides a direct measurement of circulating blood volume.
D
Its results are independent of the operator and image view.

Written response

1 point

Estimate the mean arterial pressure for a blood pressure of 90/60 mmHg using $\text{MAP}\approx\text{diastolic pressure}+\frac{1}{3}(\text{systolic pressure}-\text{diastolic pressure})$ .

True or false

1 point

True or false: An elevated central venous pressure in a patient receiving PEEP proves that the patient has excess circulating blood volume.

A
True
B
False

Choose one

1 point

An ECG shows a regular rhythm at 90 beats/min. Which conclusion is justified by the ECG finding alone?

A
It confirms that each contraction produces adequate blood flow.
B
It shows heart rate and rhythm, but not whether blood flow is adequate.
C
It directly measures stroke volume continuously.
D
It establishes whether organ perfusion is sufficient.

Choose one

1 point

A patient's systemic vascular resistance rises while preload, contractility, and heart rate remain unchanged. What may happen to stroke volume?

A
Stroke volume must rise because the ventricle ejects against greater pressure.
B
Stroke volume cannot change if preload is unchanged.
C
Stroke volume may fall because ejection faces greater resistance.
D
Cardiac output must remain unchanged because heart rate is unchanged.

Choose one

1 point

A patient's mixed venous oxygen saturation is falling. Which interpretation best fits this finding?

A
It directly measures circulating blood volume.
B
It specifically identifies right-ventricular failure.
C
It reflects the balance between oxygen delivery and consumption, and a low value is nonspecific.
D
It can be treated as interchangeable with ScvO₂.

Choose one

1 point

When assessing whether a patient may respond to fluid, which approach can provide more useful information than one static filling-pressure measurement?

A
A single CVP value, because it reliably predicts whether fluid will raise stroke volume.
B
A change in stroke volume or pulse pressure during a controlled maneuver, when the method is valid for the patient.
C
A single PAWP value, because it directly measures left-ventricular filling volume.
D
A single blood pressure reading, because it rules out poor flow when normal.

Choose one

1 point

A patient has a blood pressure of 110/70 mmHg and a heart rate of 125 beats/min, and is newly confused with cool extremities. What is the most appropriate interpretation?

A
The new findings may indicate deterioration despite the blood pressure; reassess promptly and consider the whole clinical picture.
B
The blood pressure rules out a low-flow state, so no further assessment is needed.
C
The heart rate alone establishes the cause of the confusion.
D
The findings prove that systemic vascular resistance is low.

Written response

1 point

Use $\text{SVR}=80\times(\text{MAP}-\text{right atrial pressure})\div\text{CO}$ to estimate SVR when MAP is 90 mmHg, right atrial pressure is 5 mmHg, and cardiac output is 4 L/min.

Written response

1 point

Using $\text{PVR} = 80 \times (\text{mean pulmonary artery pressure} - \text{PAWP}) \div \text{CO}$ , calculate PVR when mean pulmonary artery pressure is 22 mmHg, PAWP is 10 mmHg, and CO is 4 L/min. Enter the value without rounding.

5 Hemodynamic Measurements and Interpretation Online Quiz Questions

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