Overview
This guide groups two FSBPT nonsystem areas that together account for 9 to 12 of the 180 scored NPTE-PT items. Equipment, Devices, & Technologies has 5 to 6 items and Therapeutic Modalities has 4 to 6. Nonsystem areas have no examination, foundations or interventions split; each is a single content area with its own bulleted list.
The equipment area covers uses, adjustments, indications, contraindications and precautions for assistive and adaptive devices such as walkers, wheelchairs, seating systems and mechanical lifts; for prostheses, including microprocessor-controlled designs; and for protective, supportive and orthotic devices such as braces, helmets, taping, compression garments, serial casts, shoe inserts and splints. The modalities area covers thermal agents, iontophoresis, other electrotherapy such as NMES, TENS, FES, interferential and high-voltage pulsed current, ultrasound, mechanical devices including traction, biofeedback and intermittent compression.
How it's tested
Questions usually describe a patient and a device or modality, then ask for the right fit, the right parameter, the cause of a gait deviation, or whether a contraindication is present. Many items are short. Read for the diagnosis, the goal of treatment and any safety condition such as sensory loss, implanted devices, malignancy or pregnancy.
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Fit and use
A device is described with measurements or gait findings, and you choose the correct adjustment or instruction.
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Parameter selection
A treatment goal is given, and you select frequency, intensity, pulse duration, duty cycle or treatment time.
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Contraindication check
A modality is proposed for a patient with a specific condition, and you decide whether it is safe or what should replace it.
A patient with a transfemoral prosthesis vaults on the sound limb during swing. Weak hip muscles might seem responsible, but vaulting usually means the prosthetic limb is functionally too long or knee flexion is limited. The better answer checks prosthetic length and suspension and the knee unit before starting a strengthening program.
Content areas 2
Official content areas from the FSBPT outline, in outline order.
7.1 Equipment, Devices, & TechnologiesUses, adjustments, indications, contraindications and precautions for assistive and adaptive devices, prosthetic devices, and protective, supportive and orthotic devices (5-6 items).
- What it means
- This area covers selecting, fitting and training people to use mobility aids, wheelchairs and seating, lifts, prostheses, orthoses, braces, taping, compression garments, serial casts and splints, and recognizing problems with fit or use.
- What to understand
- Know cane height at the greater trochanter or wrist crease with 20 to 30 degrees of elbow flexion and cane use on the side opposite the painful or weak leg. Know axillary crutch fit (two to three finger widths below the axilla) and gait patterns such as two-point, three-point and four-point. Know wheelchair measurements for seat width, depth, height and back height, plus pressure-relief and seating principles. Know prosthetic components, socket types and common gait deviations, and orthoses such as AFOs for foot drop and knee-ankle-foot orthoses. Compression garments are fitted after edema is reduced, and serial casting gradually lengthens tight tissue.
- How it shows up
- Expect questions on fitting a device, choosing the best device for a patient, or identifying the cause of a deviation.
- Common confusion
- Placing a cane on the same side as the painful hip because it feels like support.
7.2 Therapeutic ModalitiesThermal modalities, iontophoresis, other electrotherapy, ultrasound, mechanical modalities such as traction, biofeedback and intermittent compression (4-6 items).
- What it means
- This area covers the indications, contraindications, precautions and parameters for physical agents and electrical stimulation used to manage pain, edema, tissue extensibility, muscle activation and wound healing.
- What to understand
- Know heat versus cold indications and precautions such as impaired sensation and circulation. Ultrasound at 1 MHz reaches deeper tissue than 3 MHz; continuous output heats tissue while pulsed output emphasizes non-thermal effects. Iontophoresis uses direct current to drive ions such as dexamethasone (negative electrode) into tissue. TENS settings differ for conventional sensory-level and acupuncture-like relief; NMES needs sufficient intensity for a strong contraction with rest periods; FES assists functional tasks such as gait. Lumbar traction needs a larger force than cervical traction. Contraindications include electrical stimulation over a pacemaker or the carotid sinus and heat over malignancy.
- How it shows up
- Items ask for the best modality for a goal, a correct parameter, or whether a contraindication rules out a choice.
- Common confusion
- Choosing 3 MHz ultrasound for a deep hip structure.
High-yield concepts
The terms, rules and formulas this domain turns into questions most often.
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Cane on the opposite side
Cane held contralateral to the involved leg.
- Remember
- Advance cane with the involved leg.
- Tested as
- Gait training items.
- Trap
- Using the same side.
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Cane and walker height
Top at the greater trochanter or wrist crease.
- Remember
- Elbow flexed about 20 to 30 degrees.
- Tested as
- Device fitting items.
- Trap
- Setting it at waist height.
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Axillary crutch fit
Pad two to three fingers below the axilla.
- Remember
- Weight goes through the hands, not the axilla.
- Tested as
- Fitting items.
- Trap
- Leaning on the pads.
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Three-point gait
Device and involved limb advance together, then the sound limb.
- Remember
- Used for non- or partial weight-bearing on one limb.
- Tested as
- Gait pattern items.
- Trap
- Confusing it with two-point.
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Wheelchair seat width
Hip width plus about 2 inches.
- Remember
- Too wide makes propulsion harder.
- Tested as
- Seating items.
- Trap
- Choosing a wide seat for comfort.
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Ankle-foot orthosis
Brace controlling ankle and foot motion.
- Remember
- Common for foot drop after stroke or peroneal nerve injury.
- Tested as
- Orthotic selection.
- Trap
- Prescribing a knee brace.
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Prosthetic vaulting
Rising on the sound toes to clear the prosthesis.
- Remember
- Often a prosthesis that is too long or a knee that will not flex.
- Tested as
- Gait deviation items.
- Trap
- Blaming hip weakness first.
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Ultrasound frequency
1 MHz deeper, 3 MHz more superficial.
- Remember
- Continuous for heating, pulsed for non-thermal effects.
- Tested as
- Parameter items.
- Trap
- Reversing the depths.
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Iontophoresis polarity
Like charges repel the drug into tissue.
- Remember
- Dexamethasone from the negative electrode.
- Tested as
- Parameter items.
- Trap
- Using the wrong electrode.
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Conventional TENS
High frequency, short pulse, sensory-level intensity.
- Remember
- Gate control pain relief during activity.
- Tested as
- Pain management items.
- Trap
- Turning it to motor level.
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NMES for strengthening
Electrical stimulation to produce strong contractions.
- Remember
- Adequate intensity with long rest periods to limit fatigue.
- Tested as
- Post-surgical quadriceps items.
- Trap
- Using a short off time.
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Traction force
Distraction force for the spine.
- Remember
- Lumbar needs a larger share of body weight than cervical.
- Tested as
- Mechanical modality items.
- Trap
- Using cervical force for the lumbar spine.
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Electrical stimulation contraindications
Situations where stimulation is unsafe.
- Remember
- Over a demand pacemaker, carotid sinus, or thrombosis.
- Tested as
- Safety screening.
- Trap
- Applying it over the anterior neck.
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Intermittent compression
Pneumatic pumping to move edema.
- Remember
- Contraindicated with acute DVT, uncontrolled heart failure or infection.
- Tested as
- Edema management items.
- Trap
- Using it for an acute DVT.
Side by side
Concepts candidates mix up, compared on the point that decides the answer.
Heat versus cold
| Concept | Meaning | Key difference | Common trap |
|---|---|---|---|
| Superficial heat | Raises tissue temperature and extensibility | Before stretching in subacute or chronic problems | Applying it to acute swelling |
| Cryotherapy | Lowers temperature, slows nerve conduction | Acute inflammation and pain | Using it with cold urticaria or Raynaud phenomenon |
| Continuous ultrasound | Deep heating | Reaches tissue below superficial agents | Applying it over a growth plate or malignancy |
Electrical stimulation types
| Concept | Meaning | Key difference | Common trap |
|---|---|---|---|
| TENS | Sensory stimulation for pain relief | No strong contraction needed | Selecting it for strengthening |
| NMES | Motor stimulation for strength | Strong contraction, long rest periods | Using sensory-level intensity |
| FES | Stimulation timed to function | Assists tasks such as dorsiflexion during gait | Using it only for pain |
| Iontophoresis | Direct current drug delivery | Polarity drives the ion | Treating it like TENS |
Assistive device gait patterns
| Concept | Meaning | Key difference | Common trap |
|---|---|---|---|
| Two-point | Device and opposite limb advance together | Faster, needs good balance | Using it for non-weight-bearing |
| Three-point | Device with involved limb, then sound limb | Allows limited weight-bearing on one side | Moving the sound limb first |
| Four-point | One device or limb at a time | Most stable and slowest | Calling it two-point |
Exam traps
Each trap is an answer that looks right. Learn the clue that should change your mind.
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Same-side cane
- What candidates pick
- Hold the cane in the hand on the painful side.
- Why it looks right
- It seems to support the painful leg directly.
- Why it's wrong
- The opposite-side cane reduces hip abductor force and joint load on the involved side.
Clue to watch for Unilateral hip or knee pain.
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Heat over sensory loss
- What candidates pick
- Apply a hot pack to an area with diabetic neuropathy.
- Why it looks right
- Heat relaxes tissue and improves blood flow.
- Why it's wrong
- Without protective sensation, the patient cannot report excessive heat, so burns are likely.
Clue to watch for Monofilament or sensation testing abnormal.
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Stimulation near a pacemaker
- What candidates pick
- Use TENS on the upper chest of a patient with a pacemaker.
- Why it looks right
- TENS is low-risk in most patients.
- Why it's wrong
- Electrical current near a demand pacemaker can interfere with its function.
Clue to watch for Implanted cardiac device mentioned.
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Shallow ultrasound for deep tissue
- What candidates pick
- Select 3 MHz for a deep hip tendon.
- Why it looks right
- Higher numbers seem stronger.
- Why it's wrong
- Higher frequency is absorbed more superficially; 1 MHz reaches deeper tissue.
Clue to watch for Target depth described as deep.
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Exercise for a fit problem
- What candidates pick
- Strengthen hip abductors for a prosthetic lateral trunk lean.
- Why it looks right
- Weak hip abductors cause lean in many patients.
- Why it's wrong
- Prosthetic length, socket fit and alignment are common causes and should be checked first.
Clue to watch for New prosthesis or recent change in fit.
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Compression for acute DVT
- What candidates pick
- Use intermittent compression to reduce calf swelling.
- Why it looks right
- Compression reduces edema.
- Why it's wrong
- Compressing a limb with an acute clot risks embolism.
Clue to watch for Unilateral warm, tender, swollen calf.
Answer framework
Use these steps for every device and modality question.
- State the clinical goal: support, protection, mobility, pain relief, edema control, tissue extensibility or muscle activation.
- Screen for contraindications and precautions, including sensation, circulation, implanted devices, malignancy, pregnancy, infection and DVT.
- Select the device or modality that best fits the goal and the patient's ability, such as a walker for poor balance or NMES for weak quadriceps.
- Set the fit or parameters correctly: device height, gait pattern, ultrasound frequency and mode, current type, polarity, intensity and duty cycle.
- Check the response and adjust, troubleshooting device fit before blaming the patient, and teach safe home use with clear written instructions and warning signs to report.
Practice question
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Study strategy
Split this domain into two parts. For equipment, practice physically if you can: fit a cane, walker and crutches to a partner, rehearse stair patterns aloud, and measure a wheelchair. Then build a prosthetic gait deviation table with the likely prosthetic cause and the likely patient cause for each deviation, plus a short list of orthoses with their indications.
For modalities, make a parameter sheet for each agent with indication, key parameters, contraindications and precautions. Include ultrasound frequency and duty cycle, TENS settings, NMES on and off times, iontophoresis polarity for common drugs, and traction force ranges. A separate contraindication grid helps, since many questions ask what is unsafe rather than what is ideal.
This domain is small, so a few focused sessions plus mixed practice questions usually cover it. Return to it in the final week to refresh numbers, because parameter recall usually fades faster than clinical reasoning does.
FAQ
How much of the NPTE-PT is equipment and modalities?
This domain groups Equipment, Devices, & Technologies (5-6 items) and Therapeutic Modalities (4-6 items), for 9 to 12 of the 180 scored items, about 5 to 7 percent.
Are microprocessor knees on the exam?
The 2024 outline lists microprocessor-controlled prosthetics as an example, so know their general benefits and training considerations along with conventional components.
Is phonophoresis tested?
The outline lists ultrasound other than phonophoresis and lists iontophoresis separately, so focus on standard ultrasound and iontophoresis.
Do I need exact parameter numbers?
Know typical ranges and relationships, such as ultrasound frequency and depth, TENS frequency and pulse duration, and NMES on-off ratios, rather than every manufacturer setting.
Which wheelchair measurements matter most?
Seat width, seat depth, seat height, back height and armrest height, along with pressure-relief strategies and positioning for posture.
Are compression garments part of this domain?
Yes. FSBPT lists compression garments under protective, supportive and orthotic devices, and intermittent compression under therapeutic modalities.
Why are equipment and modalities grouped here?
FSBPT lists them as separate nonsystem areas, each with only a handful of items. This guide combines them for planning while keeping a topic for each area.
Test your Domain 7 knowledge
You have reviewed devices, prostheses, orthoses and modalities. Confirm you can recall fitting rules and parameters quickly in mixed practice questions.
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