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14 terms

Deep Tendon Reflexes (DTR)

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Deep Tendon Reflexes (DTR)
A reflex is a motor response to a sensory stimulation that is used in an assessment to observe the integrity of the nervous system. They elicit a muscle contraction when the muscle's tenon is stimulated.
DTR Procedure Guidelines
The patient should be relaxed. The muscle should be placed on a slight stretch. A reflex hammer taps the tendon with an anticipated immediate response. Both sides of the body should be assessed. Reflexes can be graded as normal, exaggerated, or depressed, or no a scale of 0-4.
Grade 0
No Resonse
Grade 1+
Diminished/depressed response
Grade 2+
Active normal response
Grade 3+
Brisk/exaggerated response
Grade 4+
Very brisk/hyperactive; abnormal response
Biceps Tendon
C5-C6 Spinal Level; Contraction of the biceps muscle
Brachioradialis Tendon
C5-C6 Spinal Level; Elbow flexion and/or forearm pronation
Triceps Tendon
C7-C9 Spinal Level; Elbow extension or contraction of the triceps muscle
Patellar Tendon
L3-L4 Spinal Level; Knee extension
Tibialis Posterior Tendon
L4-L5 Spinal Level; Plantar flexion/inversion of the foot
Achilles Tendon
S1-S2 Spinal Level; Plantar flexion of the foot
Deep Tendon Reflexes (DTR)
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