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Pittsburgh Brainstem Score (PBSS)

Lash Reflex
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Lash Reflex
Both sides present
Both sides absent
Corneal Reflex
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Corneal Reflex
Both sides present
Both sides absent
Doll's Eye Reflex
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Doll's Eye Reflex
Both sides present
Both sides absent
Right Pupil Light Reflex Present
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Right Pupil Light Reflex Present
Present
Absent
Left Pupil Light Reflex Present
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Left Pupil Light Reflex Present
Present
Absent
Pharyngeal and Cough Reflexes
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Pharyngeal and Cough Reflexes
Present
Absent
Score:

Result Interpretation

(1) Pittsburgh Brainstem Score = Sum of reflex scores

(2) Minimum score: 6 points

(3) Maximum score: 12 points

(4) Higher scores are better

(5) PBSS can be combined with the Glasgow score to form the Glasgow-Pittsburgh Coma Score. When combined, the PBSS score range can reach 9 - 27 points.

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