NPTE – Modalities Question with correct answers

Methods of heat transmission: Correct Answer - Conduction - physical contact (hot packs, paraffin) Convection - movement of air or fluid (whirlpool, fluidotherapy) Radiation - transmission of electromagnetic energy (infrared lamp) Physiologocial effects of general heat application Correct Answer - Increased cardiac output, metabolic rate, pulse rate, respiratory rate, vasodilation Decreased BP, muscle activity, blood to internal organs, blood flow to resting muscle, stroke volume How is pain modulated via application of heat/cold? Correct Answer - Gate theory - pre synaptic inhibition of A delta and C fibers through activation of A beta fibers Hot pack heated in water between.. Correct Answer - 165 - 170 F When is the patient at greatest risk for burn? Correct Answer - Within the first 5 minutes of applying the hot pack Ratio of paraffin wax and mineral oil Correct Answer - 6:1 or 7:1 Whirlpool temperature Correct Answer - 104 - 110 F 95 - 100 F peripheral vascular disease Treatment pressure for pulsed lavage Correct Answer - 4 - 8 psi