Is a Heart Attack at Work OSHA Recordable?
Picture this: an employee suddenly grasps their chest during a morning meeting. Colleagues call 911. Paramedics rush in. The workplace falls silent as the ambulance speeds away. Questions swirl immediately. Does this go on the OSHA 300 Log? Is a heart attack at work OSHA recordable?
The answer hinges on work-relatedness, not just location. OSHA rules demand clear links between the work environment and the event. This article breaks down the criteria from 29 CFR 1904.5, recording basics, and reporting differences. HR leads, safety coordinators, office managers, and small-business owners: arm yourself with facts to handle these tense moments right.
Recordable Is Not the Same as Happened at Work
A cardiac event unfolding on site does not automatically trigger a log entry. OSHA recordkeeping focuses on work-related injuries and illnesses. Per 1904.5(a), you record cases involving an event or exposure in the work environment that caused, contributed to, or significantly aggravated the condition.
Location alone falls short. Consider a worker who feels fine driving in but collapses mid-shift. Or someone who shoveled snow at home before clocking in. Timing tests work-relatedness, not just presence.
The Work-Relatedness Test
Dive into 1904.5(b)(2)(ii). Signs or symptoms appearing at work stay off the log if they result solely from a non-work-related event or exposure outside the work environment. OSHA interpretation letters reinforce this for heart attacks lacking workplace contribution.
Illustration: An employee sits at a desk reviewing reports. No stress, no exertion. A physician later attributes the heart attack solely to underlying coronary disease, with no workplace factors. Not recordable.
Link to How to Decide if an Injury Is Work-Related for OSHA 300
Significant Aggravation of a Pre-Existing Heart Condition
1904.5(b)(4) defines significant aggravation. It occurs when workplace events or exposures lead to death, loss of consciousness, days away from work, work restrictions or transfers, or medical treatment beyond first aid. These outcomes must be ones that would not likely have happened without the work factor.
Illustration: A laborer performs strenuous lifting in extreme heat. Medical evidence shows the exertion and conditions contributed to the heart attack, triggering hospitalization. Potentially recordable as significant aggravation.
Employers often seek physician opinions on contribution or aggravation. These inform decisions but do not replace your judgment.
Related: When Is Heat Illness Recordable
If Work-Related, a Heart Attack Is Usually Recordable
Once work-relatedness clears, check 1904.7 general criteria: death, days away, restricted work, loss of consciousness, significant injury or illness requiring treatment beyond first aid.
Heart attacks typically meet these. They involve medical treatment or loss of consciousness. See Is Fainting OSHA Recordable for loss of consciousness details.
Enter on the OSHA 300 Log within 7 calendar days. Mark Column M per injury vs. illness rules, usually "All other illnesses."
Reporting to OSHA Is a Different Clock
Log recording differs from reporting. This focuses on the 300 Log. Separate recordable vs. reportable.
Per 1904.39(b)(5), report work-related heart attack fatalities or in-patient hospitalizations. Fatality: death within 30 days of incident, report within 8 hours of learning. In-patient hospitalization: formal admission for care (not observation), report within 24 hours of learning about the incident within 24 hours.
Area Office director decides investigation. Details in OSHA Severe Injury Reporting.
What to Document
Separate clocks. Document facts on work-relatedness: event details, medical input, physician views on aggravation. Avoid over-recording or skipping reports to "play safe." Base choices on evidence.
- Incident description and timing
- Work activities involved
- Medical records and opinions
- Pre-existing conditions noted
Note for business changes: See change of ownership rules and short-term job sites.
After the Emergency
FORM 300 LOGBOOK offers independent OSHA 300, 300A, and 301 recordkeeping software for small businesses. Not OSHA. Not a filing service. Does not report to OSHA. Not medical or legal advice. Not a replacement for official forms or professional judgment. No guaranteed compliance.
Get a plain-language map of recording vs. reporting at OSHA Guidance. Remember: severe-injury calls go direct to OSHA, not through software. Explore How It Works or FAQ.
When a heart strikes at work, facts guide the log. Work-relatedness decides, not panic.