Overview
Cardiovascular & Pulmonary Systems is the third largest body system on the NPTE-PT, with 22 to 27 of the 180 scored items in the 2024 FSBPT content outline. FSBPT splits the system into three categories: physical therapy examination (7-8 items), foundations for evaluation, differential diagnosis and prognosis (7-9 items), and interventions (8-10 items). Since January 2024 the exam has 225 items, of which 180 are scored and 45 are unscored pretest items, delivered in five sections of 45 over five hours.
Expect questions on heart and breath sounds, ECG rhythms, normal and abnormal vital sign responses to exercise, rating of perceived exertion, pulmonary function patterns and arterial blood gases. Foundations items cover conditions such as heart failure, myocardial infarction, COPD, cystic fibrosis and pulmonary embolism, plus the effect of beta blockers, anticoagulants and bronchodilators on therapy. Interventions focus on aerobic prescription, cardiac and pulmonary rehab phases, airway clearance and breathing strategies.
How it's tested
Cardiopulmonary items are usually clinical vignettes with numbers: heart rate, blood pressure, SpO2, lab values, an ECG strip description or pulmonary function results. You must decide what the numbers mean for safety and which intervention fits. Read the setting and medications first, because beta blockers, oxygen and post-surgical status all change the right answer.
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Exercise response check
Vital signs before and during activity are given, and you decide whether the response is normal, needs modification, or requires stopping and reporting.
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Pattern recognition
Breath sounds, chest imaging, pulmonary function tests or ECG descriptions are given, and you identify the likely condition or complication.
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Rehab phase choice
A patient after MI, CABG or a COPD exacerbation needs an exercise or airway clearance plan suited to the phase of care.
A patient taking metoprolol walks on a treadmill and heart rate rises only from 62 to 74. A target heart rate formula would suggest the effort is too light. Beta blockers blunt the heart rate response, so the better choice is to use rating of perceived exertion, such as 11 to 13 on the Borg 6-20 scale, to guide intensity rather than pushing for a higher heart rate.
Content areas 3
Official content areas from the FSBPT outline, in outline order.
1.1 Physical Therapy Examination (cardiovascular & pulmonary)Cardiopulmonary tests and measures, related anatomy and physiology, and movement analysis such as chest wall expansion and breathing pattern (7-8 items).
- What it means
- This category covers how a physical therapist measures heart and lung function: vital signs, auscultation, ECG interpretation, exercise testing, functional capacity tests and outcome measures, plus the anatomy and physiology behind them and analysis of breathing pattern and chest wall motion.
- What to understand
- Know normal adult resting values and the expected exercise response: heart rate and systolic pressure rise roughly linearly with workload while diastolic stays the same or changes slightly. Recognize normal and adventitious breath sounds, including crackles, wheezes and diminished sounds. Know the 6-minute walk test, Borg scales, dyspnea scales and ankle-brachial index interpretation. Be able to read basic rhythms such as atrial fibrillation, PVCs, ventricular tachycardia and ST changes, and connect chest wall excursion and accessory muscle use to obstructive or restrictive disease.
- How it shows up
- Items give vital signs or test results and ask whether the finding is normal, what it suggests, or which measure best answers a clinical question.
- Common confusion
- Treating any diastolic rise as normal; a rise above about 10 mmHg during exercise is abnormal.
1.2 Foundations for Evaluation, Differential Diagnosis, & Prognosis (cardiovascular & pulmonary)Cardiopulmonary conditions and pathophysiology, medical management such as imaging, lab values and surgery, medication effects and differential diagnosis (7-9 items).
- What it means
- This category tests whether you understand cardiovascular and pulmonary diseases well enough to evaluate findings, separate conditions with similar presentations, predict outcomes and plan care, including the effect of medical tests, surgery and drugs.
- What to understand
- Compare obstructive disease (COPD, asthma, cystic fibrosis) with restrictive disease (pulmonary fibrosis, chest wall disorders) using FEV1/FVC and lung volumes. Know left versus right heart failure signs, the significance of troponin, BNP, INR, hemoglobin and arterial blood gas values, and the warning signs of DVT and pulmonary embolism. Understand sternal precautions after median sternotomy and how beta blockers, nitrates, diuretics, digoxin, anticoagulants and bronchodilators change exercise response or risk. Separate cardiac chest pain from musculoskeletal pain by its response to exertion and palpation.
- How it shows up
- Expect a patient profile with labs, imaging or medications and a question about the most likely diagnosis, the safest plan or the expected prognosis.
- Common confusion
- Assuming chest pain that is reproducible with palpation can still be cardiac; it usually points elsewhere.
1.3 Interventions (cardiovascular & pulmonary)Cardiopulmonary interventions for rehabilitation, health promotion and performance, plus adverse effects of interventions on this system (8-10 items).
- What it means
- This category covers choosing, dosing and monitoring interventions for heart and lung conditions, and recognizing cardiopulmonary adverse effects caused by treatment, including treatment aimed at other systems.
- What to understand
- Know aerobic prescription by intensity, frequency, duration and mode, including heart rate reserve and RPE when heart rate is unreliable. Understand cardiac rehab phases from inpatient to maintenance and the criteria for stopping exercise: angina, a systolic drop of more than 10 mmHg with rising workload, new arrhythmia, severe dyspnea, SpO2 falling below about 88 to 90 percent, or signs of poor perfusion. Know airway clearance (postural drainage, percussion, huffing, active cycle of breathing, oscillatory devices), pursed-lip and diaphragmatic breathing, inspiratory muscle training and energy conservation. Recognize the Valsalva effect of heavy resistance training and orthostatic hypotension after bed rest.
- How it shows up
- Questions ask for the best next intervention, the correct dose, or the response to an abnormal sign during treatment.
- Common confusion
- Placing every patient in head-down postural drainage, even with increased intracranial pressure or uncontrolled reflux.
High-yield concepts
The terms, rules and formulas this domain turns into questions most often.
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Normal exercise BP response
Systolic rises with workload while diastolic stays roughly stable.
- Remember
- A falling systolic as work increases is a stop sign.
- Tested as
- Exercise safety vignettes.
- Trap
- Ignoring a diastolic rise above about 10 mmHg.
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Beta blockers
Lower resting heart rate and blunt the exercise heart rate response.
- Remember
- Use RPE to guide intensity.
- Tested as
- Medication effect items.
- Trap
- Using age-predicted target heart rate.
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RPE (Borg 6-20)
Self-rated exertion scale.
- Remember
- About 11 to 13 is light to somewhat hard for most rehab.
- Tested as
- Dosing questions.
- Trap
- Confusing the 6-20 and 0-10 scales.
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FEV1/FVC ratio
Proportion of forced vital capacity exhaled in the first second.
- Remember
- Reduced in obstructive disease, normal or high in restrictive disease.
- Tested as
- PFT interpretation.
- Trap
- Calling every low FVC obstructive.
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Left heart failure
Pulmonary congestion from poor left ventricular output.
- Remember
- Crackles, dyspnea, orthopnea and PND.
- Tested as
- Differential diagnosis.
- Trap
- Expecting peripheral edema as the main sign.
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Right heart failure
Systemic venous congestion.
- Remember
- Jugular venous distension, dependent edema, weight gain.
- Tested as
- Differential diagnosis.
- Trap
- Mixing it up with left-sided signs.
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Sternal precautions
Limits on upper extremity loading after sternotomy.
- Remember
- Avoid heavy pushing, pulling and lifting early on.
- Tested as
- Post-CABG plan of care.
- Trap
- Pushing up from a chair with both arms.
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Ankle-brachial index
Ankle systolic pressure divided by arm systolic pressure.
- Remember
- Below about 0.9 suggests arterial disease.
- Tested as
- Vascular screening.
- Trap
- Applying compression when the ABI is low.
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Wells criteria
Clinical prediction rule for DVT probability.
- Remember
- High probability needs medical referral before exercise.
- Tested as
- Red flag screening.
- Trap
- Massaging a painful, swollen calf.
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Airway clearance
Techniques that move secretions toward the mouth.
- Remember
- Huffing and active cycle of breathing reduce airway collapse.
- Tested as
- COPD and cystic fibrosis plans.
- Trap
- Using percussion over a rib fracture.
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Supplemental oxygen
Prescribed flow to keep SpO2 in a target range.
- Remember
- Monitor SpO2 during activity.
- Tested as
- Acute care and pulmonary rehab.
- Trap
- Changing the prescribed flow without an order.
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Phase I cardiac rehab
Inpatient low-intensity activity after a cardiac event.
- Remember
- Heart rate rise of about 20 beats above resting is a common upper limit.
- Tested as
- Acute care items.
- Trap
- Using outpatient intensity in the first days.
Side by side
Concepts candidates mix up, compared on the point that decides the answer.
Obstructive versus restrictive lung disease
| Concept | Meaning | Key difference | Common trap |
|---|---|---|---|
| Obstructive (COPD, asthma) | Airflow limitation on expiration | Low FEV1/FVC, increased residual volume | Prescribing deep fast breaths that worsen air trapping |
| Restrictive (fibrosis, kyphoscoliosis) | Reduced lung expansion | Reduced total lung capacity with normal or high ratio | Calling it obstructive because FVC is low |
| Mixed pattern | Features of both | Ratio and volumes both abnormal | Forcing a single label on the results |
Left versus right heart failure
| Concept | Meaning | Key difference | Common trap |
|---|---|---|---|
| Left-sided failure | Fluid backs up into the lungs | Crackles, orthopnea, dyspnea | Expecting leg edema first |
| Right-sided failure | Fluid backs up into the body | JVD, ankle edema, hepatomegaly | Expecting crackles first |
| Daily weight gain | Fluid retention marker | More than about 1 kg in a day or 2 kg in a week needs reporting | Treating it as normal variation |
Arterial versus venous insufficiency
| Concept | Meaning | Key difference | Common trap |
|---|---|---|---|
| Arterial | Poor inflow to tissue | Claudication, pallor on elevation, weak pulses | Elevating the limb to relieve pain |
| Venous | Poor return from tissue | Edema, brown staining, aching relieved by elevation | Using arterial tests to rule it out |
Exam traps
Each trap is an answer that looks right. Learn the clue that should change your mind.
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Push through falling BP
- What candidates pick
- Continue exercise because heart rate is still rising appropriately.
- Why it looks right
- Heart rate looks fine and the patient wants to continue.
- Why it's wrong
- A systolic drop of more than 10 mmHg as workload increases suggests poor cardiac output and is a reason to stop.
Clue to watch for Systolic lower at higher workload.
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Target heart rate on beta blockers
- What candidates pick
- Increase intensity until the formula target is reached.
- Why it looks right
- Formulas are familiar and precise-looking.
- Why it's wrong
- Beta blockade caps the heart rate response, so the target may never be reached safely; RPE fits better.
Clue to watch for Medication list includes a beta blocker.
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Head-down drainage for all
- What candidates pick
- Use Trendelenburg positions for every lower lobe segment.
- Why it looks right
- Textbook drainage diagrams show head-down positions.
- Why it's wrong
- Head-down positions are contraindicated or modified with raised intracranial pressure, reflux, recent surgery or severe dyspnea.
Clue to watch for Comorbidity listed in the stem.
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Cardiac chest pain by palpation
- What candidates pick
- Treat tender chest wall pain as angina.
- Why it looks right
- Chest pain feels dangerous, so the cautious pick seems right.
- Why it's wrong
- Pain reproduced by palpation with no exertional pattern suggests musculoskeletal origin, though red flags still need screening.
Clue to watch for Pain changes with palpation or trunk movement.
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Oxygen titration by the PT
- What candidates pick
- Raise oxygen flow when SpO2 drops.
- Why it looks right
- It appears to fix the problem immediately.
- Why it's wrong
- Oxygen is prescribed; the PT follows the order or protocol, rests the patient and notifies the team.
Clue to watch for No titration protocol mentioned.
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Calf massage for swelling
- What candidates pick
- Apply massage or vigorous activity to a warm, painful calf.
- Why it looks right
- Massage seems to treat swelling.
- Why it's wrong
- Signs of DVT need medical evaluation first because manipulation may dislodge a clot.
Clue to watch for Unilateral swelling, warmth and tenderness after surgery.
Answer framework
Use this order when a cardiopulmonary vignette asks what to do next.
- Note the setting, diagnosis, recent surgery and medications, especially beta blockers, anticoagulants, diuretics and oxygen.
- Compare resting vital signs with the values during activity and look at the direction of change, not only the numbers.
- Check stop criteria: angina, falling systolic pressure, new arrhythmia, severe dyspnea, low SpO2, dizziness or pallor.
- If the patient is safe, choose the intervention that matches the condition and phase, such as airway clearance or graded aerobic exercise.
- Pick the dosing and monitoring tool that still works for this patient, for example RPE when heart rate response is blunted, and decide what you will report to the physician or nurse.
Practice question
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Study strategy
Start with numbers. Build a one-page sheet of normal vital signs, normal and abnormal exercise responses, stop criteria, key lab values and ABG rules. Quiz yourself until you can judge a set of vitals in seconds, because many items turn on spotting one abnormal trend. Then learn ECG rhythms with strip images and decide for each whether therapy continues, is modified or stops.
Next, study conditions in pairs that the exam likes to contrast: obstructive and restrictive disease, left and right heart failure, arterial and venous insufficiency, stable and unstable angina. For each pair write the hallmark signs, the medical management and the physical therapy implications.
Finish with interventions. Practice writing aerobic prescriptions for a patient on beta blockers, a patient after CABG and a patient with COPD on oxygen, and choose airway clearance for cystic fibrosis and post-operative atelectasis. Work timed vignettes and review every miss by asking which number or medication you overlooked.
FAQ
How much of the NPTE-PT is Cardiovascular & Pulmonary Systems?
FSBPT allots 22 to 27 of the 180 scored items to Cardiovascular & Pulmonary Systems, which is about 12 to 15 percent of the scored exam and the third largest body system.
How many items does the NPTE-PT have now?
Since January 2024 the NPTE-PT has 225 items in five sections of 45. FSBPT scores 180 of them; the other 45 are unscored pretest items you cannot identify.
Do I need to read ECG strips?
Yes, at a practical level. Know common rhythms such as atrial fibrillation, PVCs, heart blocks and ventricular tachycardia, and what each means for exercise.
Which lab values come up most?
Hemoglobin and hematocrit, INR, platelets, potassium, troponin, BNP, glucose and arterial blood gases are common, mainly for deciding whether exercise is safe.
How should I guide intensity for a patient on beta blockers?
Use rating of perceived exertion, dyspnea scales or a heart rate target taken from an exercise test performed on the medication, rather than age-predicted formulas.
Are pulmonary rehab and airway clearance tested?
Yes. Expect questions on breathing retraining, huffing, active cycle of breathing, postural drainage precautions, inspiratory muscle training and oxygen use during exercise.
What precautions follow open-heart surgery?
Sternal precautions limit heavy upper extremity loading early in recovery. Facilities vary, so read the stem for the protocol and look for signs of sternal instability.
Test your Domain 1 knowledge
You have reviewed vital sign responses, cardiopulmonary conditions and rehab interventions. Check whether you can make the stop-or-continue call quickly under timed conditions.
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