Free Practice Quiz Question List

5 Blood Gases, Cardiac Markers, and Clinical Practice Online Quiz Questions

Use this free practice quiz with 20 questions to review 5 Blood Gases, Cardiac Markers, and Clinical Practice, test your knowledge, and prepare for your next test or exam.

20 questions

True or false

1 point

True or false: In a primary respiratory disorder, pH and PaCO₂ generally move in opposite directions.

A
True
B
False

Fill in the blank

1 point

For respiratory disorders, pH and PaCO₂ generally move in directions.

Written response

1 point

What physiologic stimulus prompts release of BNP and NT-proBNP?

Choose one

1 point

When CK-MB appears in a result set and cardiac troponin testing is available, which approach is most appropriate?

A
Treat it as a substitute for troponin whenever it is elevated.
B
Interpret it using local guidance and the full clinical picture.
C
Use it alone to determine whether a patient has had a heart attack.
D
Compare its result directly with a BNP result.

Choose one

1 point

A patient’s high-sensitivity cardiac troponin is above the assay-specific 99th-percentile upper reference limit. What conclusion is supported by this result alone?

A
It proves that the patient has had a heart attack.
B
It identifies the cause of the patient’s myocardial injury.
C
It indicates myocardial injury, but does not alone establish its cause.
D
It rules out myocardial injury if the patient has no chest pain.

Choose one

1 point

A patient with shortness of breath has an elevated BNP. Which interpretation is most appropriate?

A
It diagnoses heart failure without any other assessment.
B
It supports considering heart failure but needs clinical context.
C
It rules out heart failure if the patient has no edema.
D
It can be directly compared with an NT-proBNP value as the same test.

Written response

1 point

Which biomarker is preferred for detecting myocardial injury in suspected acute coronary syndrome?

Fill in the blank

1 point

A near-normal pH does not rule out dangerous .

Choose all

1 point

Which details belong in the assessment portion of an SBAR report about a concerning laboratory result? Select all that apply.

A
Current vital signs and mental status.
B
Only the lab result, without its units or reference limit.
C
ECG findings, if available.
D
The exact lab value and units, reference limit, and prior or repeat values with times.
E
A request for urgent bedside assessment, with no patient findings.

Choose all

1 point

When evaluating a PaO₂ result, which considerations are supported? Select all that apply.

A
Consider the patient’s supplemental oxygen or other oxygen delivery.
B
Assume PaO₂ is unaffected by altitude.
C
Interpret the result alongside SpO₂ and the clinical picture.
D
Use a near-normal pH as proof that oxygenation is safe.

True or false

1 point

True or false: If an ECG shows STEMI, reperfusion treatment should wait until troponin results are available.

A
True
B
False

Choose one

1 point

A patient has a pH of $7.25$ , PaCO₂ of $26$ mmHg, and HCO₃⁻ of $12$ mEq/L. Which interpretation best fits this pattern?

A
Respiratory acidosis with no compensation.
B
Metabolic alkalosis with respiratory compensation.
C
Metabolic acidosis with respiratory compensation.
D
Respiratory alkalosis with metabolic compensation.

Open ended

1 point

A patient becomes increasingly drowsy and develops worsening breathing difficulty while a laboratory result is still pending. What should the care team do, and why should it not wait for the result?

Written response

1 point

When beginning a systematic interpretation of an arterial blood gas, which measurement should you read first?

Written response

1 point

In an arterial blood gas report, what quantity does SaO₂ represent?

True or false

1 point

When interpreting an arterial blood gas, compensation does not necessarily return the pH to the reference range.

A
True
B
False

Choose one

1 point

A patient with suspected diabetic ketoacidosis has an arterial blood gas showing pH $7.25$ , PaCO₂ $26$ mmHg, and HCO₃⁻ $12$ mEq/L. Which interpretation best fits this pattern?

A
Respiratory acidosis with metabolic compensation
B
Metabolic acidosis with respiratory compensation
C
Respiratory alkalosis with metabolic compensation
D
Metabolic alkalosis with respiratory compensation

Choose one

1 point

A patient’s arterial blood gas shows pH $7.40$ and PaO₂ $58$ mmHg. Which conclusion is best supported?

A
Normal pH establishes that oxygenation is adequate.
B
PaO₂ is not useful when pH is within its reference range.
C
The low PaO₂ indicates hypoxemia that needs assessment in clinical context.
D
The result proves that the patient has a metabolic acid–base disorder.

Choose one

1 point

A patient has one high-sensitivity cardiac troponin result above that assay’s 99th-percentile upper reference limit. What does this finding establish by itself?

A
It proves an acute myocardial infarction regardless of symptoms or ECG findings.
B
It indicates myocardial injury, but one value alone does not establish the cause or prove a heart attack.
C
It rules out myocardial injury unless CK-MB is also elevated.
D
It can be interpreted using the cutoff from any troponin assay.

Choose one

1 point

You are giving an SBAR report about a concerning laboratory result. Which information belongs in the Assessment portion?

A
Only the patient’s history and symptom onset
B
Only the requested intervention
C
Current status and the exact result, including relevant reference and trend information
D
Only the latest laboratory value, without units or context