# Ischemic heart disease  n.e.c. at MPLX LP
> OSHA SIR `2024043518` · 4/23/2024 · WASHINGTON, PENNSYLVANIA
## Severity
- **1 hospitalization**
- **Body part:** Heart
- **Nature of injury:** Ischemic heart disease  n.e.c.
## Cause
- **Event:** Running, without other incident
- **Source:** Bodily motion or position of injured, ill worker
- **Secondary source:** Gases  unspecified
## Employer
- **Name:** MPLX LP
- **Location:** 1090 Western Avenue, WASHINGTON, PENNSYLVANIA, 15301
- **NAICS:** 541611
- **Jurisdiction:** 1
## Narrative

An employee was detecting the lower explosive limit (LEL) and initiated a shutdown of the loading rack, stopping the flow to the rail car. The employee's personal four-gas monitor began to alarm for LEL and he evacuated north toward the end of the loading rack. The employee had difficulty catching his breath and had a rapid heart rate after he evacuated the area. The employee was hospitalized for atrial fibrillation.

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*Source: [OSHA Severe Injury Reports](https://www.osha.gov/severe-injury-reports) · MORVS · CC0 1.0*