Practice questions › DPT / Allied Health › DPT Professional Review: Physical Therapy Essentials
Therapeutic Modalities and Tissue Healing MCQs
DPT Professional Review: Physical Therapy Essentials · DPT / Allied Health · 54 practice questions
- Tissue Healing Phases
- Joint Mobilization
- Iontophoresis
- Therapeutic Ultrasound
- Ultrasound Contraindications
- TENS
- Strength Training Principles
- Superficial Heat and Cryotherapy Contraindications
1. A patient presents with a painful calcific deposit in the shoulder tendon. Which iontophoresis medication and electrode polarity combination would be most appropriate to help dissolve the deposit?
- ADexamethasone at the negative pole
- BAcetic acid at the positive pole
- CLidocaine at the positive pole
- DAcetic acid at the negative pole
Show answer
D. Acetic acid at the negative pole Acetic acid delivered at the negative pole is used for treating calcific deposits.
2. A patient with chronic low back pain has failed to achieve adequate analgesia with conventional TENS based on gate control theory. The clinician wishes to switch to a modality that works via endorphin release instead. Which parameter change is most appropriate?
- AKeep frequency the same but decrease intensity
- BIncrease frequency to 50-100 Hz and decrease intensity
- CDecrease frequency to 2-4 Hz and increase intensity
- DIncrease frequency to 2500 Hz with burst modulation
Show answer
C. Decrease frequency to 2-4 Hz and increase intensity Acupuncture-like TENS uses low frequency (2-4 Hz) and high intensity to release endorphins, in contrast to conventional TENS (50-100 Hz, low intensity) which works via gate control theory.
3. A patient with a deep hip capsular contracture is being treated with ultrasound aiming to achieve a therapeutic thermal effect at a depth of about 4 cm. Which combination of frequency and duty cycle is most appropriate?
- A3 MHz with 100% duty cycle
- B3 MHz with 20% duty cycle
- C1 MHz with 20% duty cycle
- D1 MHz with 100% duty cycle
Show answer
D. 1 MHz with 100% duty cycle 1 MHz ultrasound penetrates deeper (3-5 cm), and thermal effects require a continuous (100%) duty cycle, whereas pulsed (~20%) duty cycle produces non-thermal effects.
Practise all 54 questions free
Every answer is marked the moment you tap it, with the reason. Your weak topics come back until you get them right.
Start free, no card needed