COHN S EXAM 2026 REVISION NOTES AND
STRUCTURED OCCUPATIONAL HEALTH
OVERVIEW GUIDE
◉ Lead Standard Biological Monitoring Answer: Blood Lead Levels
(PbB) and Zinc Protoporphyrin (ZPP)
◉ S&S Hypokalemia Answer: shallow respirations, paralytic ileus,
leg muscle weakness
◉ Four Phases of the EAP Answer: 1. Problem Assessment
2. Short term counseling
3. Referral to Inpatient or Other Provider
4. f/u and Network Maintenance
◉ Standard Threshold Shift (STS) Answer: a change of 10 dB or
more at 2000, 3000, and 4000 Hz
◉ Minamata Bay, Japan Answer: Site of serious exposure to methyl
mercury (organic) through contamination of shellfish.
, ◉ PEL Answer: Permissible Exposure Limit - determined by OSHA,
enforced by law
◉ TWA Answer: Time Weighted Average
◉ TLVs Answer: Threshold Limit Values
◉ STEL Answer: Short Term Exposure Limit
◉ REL Answer: Recommended Exposure Limit
◉ PEL - for noise Answer: 90 dB
◉ Noise Limit for OSHA Hearing Conservation Standard Answer: 85
dB TWA over 8 hours
◉ Physical Hazards in the Workplace include Answer: noise, heat,
cold, vibration, radiation
◉ Biological Hazards in the Workplace include Answer: bacteria,
viruses, fungi, mold, parasites
STRUCTURED OCCUPATIONAL HEALTH
OVERVIEW GUIDE
◉ Lead Standard Biological Monitoring Answer: Blood Lead Levels
(PbB) and Zinc Protoporphyrin (ZPP)
◉ S&S Hypokalemia Answer: shallow respirations, paralytic ileus,
leg muscle weakness
◉ Four Phases of the EAP Answer: 1. Problem Assessment
2. Short term counseling
3. Referral to Inpatient or Other Provider
4. f/u and Network Maintenance
◉ Standard Threshold Shift (STS) Answer: a change of 10 dB or
more at 2000, 3000, and 4000 Hz
◉ Minamata Bay, Japan Answer: Site of serious exposure to methyl
mercury (organic) through contamination of shellfish.
, ◉ PEL Answer: Permissible Exposure Limit - determined by OSHA,
enforced by law
◉ TWA Answer: Time Weighted Average
◉ TLVs Answer: Threshold Limit Values
◉ STEL Answer: Short Term Exposure Limit
◉ REL Answer: Recommended Exposure Limit
◉ PEL - for noise Answer: 90 dB
◉ Noise Limit for OSHA Hearing Conservation Standard Answer: 85
dB TWA over 8 hours
◉ Physical Hazards in the Workplace include Answer: noise, heat,
cold, vibration, radiation
◉ Biological Hazards in the Workplace include Answer: bacteria,
viruses, fungi, mold, parasites