NPLEX II - Physical Medicine Updated 2024/2025 Verified 100%
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Course
NPLEX II - Physical Medicine
Institution
NPLEX II - Physical Medicine
Which of the following describes the polarity effect in low voltage galvanism?
ANALGESIC AND ANTIMICROBIAL
a) positive/anode pole
b) negative/cathode pole - a) positive/anode pole
Which of the following describes the polarity effect in low voltage galvanism?
SOFTENS SCAR TISSUE
a) positive/an...
, __ MHz is the msot commonly used short wave diathermy because it has the widest bandwidth and
easiest to generate - 27.12 Hz
T/F Short wave diathermy can interfere with communication signals - true
What is an advantage of short wave diathermy compared to hot packs and ultrasound? - better
than hot packs - can penetrate deeper tissues
better than ultrasound - does not concentrate at periosteum and cause burning; it can also cover larger
areas
Short wave diathermy should not be used in those with ___ as the nerve can cause conduction block dt
shortened duration of sodium channel opening the node of Ranvier during neuron depolarization -
multiple sclerosis
Thermal effects of diathermy - Used to heat large, deep areas of tissue
Superficial tissues—vasodilation --> increase circulation with increased temperature; increase pain
threshold = reduce pain; increase rate of nerve conduction
Deeper tissues—increase tissue extensibility
Short wave diathermy when pulsed at low average intensity allows tissue temperature to be maintained
dt heat quickly dissipating through the blood. What nonthermal effects does it have? - 1.
immproves tissue healing by altering cell membrane function and cellular activity (accelerate calcium ion
binding, NO release)
2.increases microvascular perfusion and accelerate tissue healing and increase oxygenation
What are contraindications to short wave diathermy? (7) - 1. during pregnancy esp in the pelvic
and abdominal area
2.over the eyes
3.over the testes
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