The Operative Sentence

What published guidance says happens after a blood or body-fluid splash to the eye

A source-by-source account of what each retrieved guideline says, and of what the bloodborne pathogens standard obliges an employer to provide and pay for.

In brief

• Once an exposure incident is reported, 29 CFR 1910.1030(f)(3) requires the employer to make a confidential medical evaluation and follow-up immediately available, and (f)(1)(ii)(A) requires it at no cost to the employee.1
• The standard's definition of an exposure incident turns on contact, not on volume. It sets no minimum quantity and no threshold below which an eye splash stops counting.1
• The current federal guideline for occupational HIV exposure is the 2025 US Public Health Service update, not the 2013 document many pages still reproduce; among the things it changed is a shortened schedule of follow-up HIV testing.4
• We found no document in this set that states how long an eye should be irrigated. Four of them say to flush or irrigate; none gives a duration, a volume or a temperature.178
• Blood may reach the eye more often than anyone notices: in one oculofacial series, blood was detected on 61% of 331 protective eye shields worn across 131 cases, while 2% of splatters were recognised during surgery. One small single-specialty study; low certainty.11

What this page is, and what it is not

This is a citational brief. For each document we retrieved, it sets out what that document says about washing, reporting, testing, prophylaxis and follow-up, quoted and dated. It does not combine them into a sequence or a checklist. That refusal is the design of the page: a compressed schedule assembled by a publisher who has never managed an exposure would be clinical instruction to a frightened person, in our voice rather than the guideline's.

Everything below was pulled as raw text from the document itself on 2026-08-06 — the GPO XML of the Code of Federal Regulations, the agency PDFs, the HTML of the pages named. Nothing here is transcribed from a summary of a document.

What counts as an exposure incident

The recurring question in the nursing forums is whether a small splash is "a real exposure". The standard answers with a definition, and the definition has no quantity in it.

Exposure Incident means a specific eye, mouth, other mucous membrane, non-intact skin, or parenteral contact with blood or other potentially infectious materials that results from the performance of an employee's duties.

Read the full sectionArchived copy

Eye contact is named first, and it is the only route on that list that needs no wound and no needle. The qualifiers the definition does carry are specific — a particular contact, arising from duties — and the material, blood or other potentially infectious materials, which the same paragraph defines by listing the fluids it covers.1 Nothing in it scales with volume, and nothing in it requires a witness.

What the employer owes once an exposure is reported

The duty in paragraph (f) is triggered by a report, and it is written in the imperative.

The conditions attached to that evaluation are in (f)(1)(ii), and one of them is the hinge on which the rest of this page turns.

(ii) The employer shall ensure that all medical evaluations and procedures including the hepatitis B vaccine and vaccination series and post-exposure evaluation and follow-up, including prophylaxis, are:

(A) Made available at no cost to the employee;

(B) Made available to the employee at a reasonable time and place;

(C) Performed by or under the supervision of a licensed physician or by or under the supervision of another licensed healthcare professional; and

(D) Provided according to recommendations of the U.S. Public Health Service current at the time these evaluations and procedures take place, except as specified by this paragraph (f).

(iii) The employer shall ensure that all laboratory tests are conducted by an accredited laboratory at no cost to the employee.

Read the full sectionArchived copy

Subparagraph (D) is why a regulation that never mentions hepatitis C can still require testing for it: the clinical content is not in the standard but in whatever the Public Health Service currently recommends. That is why the rest of this page is mostly about four other documents, and why their publication dates matter more than the CFR's.

Two limits nearby are worth reading. The written opinion the evaluating professional gives the employer, under (f)(5)(ii), is confined to two facts: that the employee has been informed of the results, and that the employee has been told about any medical conditions resulting from the exposure that require further evaluation. Then (f)(5)(iii): "All other findings or diagnoses shall remain confidential and shall not be included in the written report."1

Washing and irrigation, and the number none of these documents contains

OSHA's washing duty is not in paragraph (f) at all. It sits in the work-practice controls, and it attaches to contact, whether or not anything is later reported.

Employers shall ensure that employees wash hands and any other skin with soap and water, or flush mucous membranes with water immediately or as soon as feasible following contact of such body areas with blood or other potentially infectious materials.

Read the full sectionArchived copy

NIOSH's page for healthcare workers, last reviewed 13 February 2025, is the only document in this set that names the eye separately from other mucous membranes and names a fluid.

Wash needlestick or sharp punctures and cuts with soap and water.

Flush splashes to the nose, mouth, or skin with water.

Irrigate eyes with clean water, saline, or sterile irrigants.

Report the incident to your supervisor.

Immediately seek medical care to determine risk associated with the exposure.

Read the full pageArchived copy

CDC's 2013 hepatitis B guidance carries the same instruction in older Public Health Service wording, and adds what the evidence does not support: "Wounds and skin sites that have been in contact with blood or body fluids should be washed with soap and water; mucous membranes should be flushed with water. Using antiseptics (e.g., 2%–4% chlorhexidine) for wound care or expressing fluid by squeezing the wound further have not been shown to reduce the risk for HBV transmission; however, the use of antiseptics is not contraindicated."7 That paragraph descends almost verbatim from the 2001 Public Health Service guidelines, where it appears under the heading "Treatment of an Exposure Site".12

We found no statement of duration in any of them. Not one of these four documents says how many minutes to irrigate, how much fluid to use, or at what temperature. The fifteen-minute figure that circulates on exposure posters is not in the bloodborne pathogens standard, not on NIOSH's page, and not in the CDC guidance we retrieved. We did not trace where it comes from, and we are not saying it is wrong. What we can show is that the OSHA provision on drenching and flushing facilities, 29 CFR 1910.151(c), is triggered by a different hazard: "Where the eyes or body of any person may be exposed to injurious corrosive materials, suitable facilities for quick drenching or flushing of the eyes and body shall be provided within the work area for immediate emergency use."3 The only eyewash requirement inside the bloodborne pathogens standard is at (e)(3)(i) and (e)(4)(iii), and paragraph (e) governs HIV and HBV research laboratories and production facilities — not an operating room.1

Testing: what each guideline sets out

Three documents cover the three pathogens, written eleven years apart. The 2025 guidelines cover HIV and say expressly that recommendations on occupational exposures to hepatitis B and hepatitis C "have been published previously" and "are not included in these guidelines".4 Every schedule below is conditional in its own source. The table reproduces the operative phrases; the conditions stay in the documents.

Source-patient testing is a duty in the standard itself. Under (f)(3)(ii)(A) the source individual's blood "shall be tested as soon as feasible and after consent is obtained in order to determine HBV and HIV infectivity", and under (f)(3)(ii)(C) the results "shall be made available to the exposed employee".1 Hepatitis C is absent from that sentence; the 2020 CDC guidance fills the gap by way of (f)(1)(ii)(D). Where the source cannot be tested, the hepatitis B guidance states the default: "When a source patient is unknown (e.g., as occurs from a puncture with a needle in the trash), the exposed HCP should be managed as if the source patient were HBsAg-positive."7

Prophylaxis, and two statements about 72 hours that are not the same statement

The occupational HIV guideline was replaced in September 2025. Its abstract says it updates the 2013 document, and that what changed includes "new antiretroviral drug regimens for post-exposure prophylaxis (PEP)" and "a shortened duration of post-exposure follow-up HIV testing".4 A page still reproducing the 2013 schedule of baseline, six weeks, twelve weeks and six months is reproducing a superseded document.5

Educate HCP to report occupational exposures to blood and body fluids as soon as possible to their occupational health service.

Initiate PEP as soon as possible, up to 72 hours following the occupational exposure to HIV.

When considering initiation of PEP after 72 hours following occupational exposures thought to represent a high risk of transmission, consult a provider with expertise in HIV treatment (see Box 1).

Prescribe PEP regimens for a duration of 28 days.

Do not delay administration of PEP while waiting for information regarding the source patient's HIV status.

Re-evaluate exposed HCP within 72 hours after occupational exposure to assess for further counseling needs and PEP tolerability.

Read the full guidelinesPublisher's record

Those are three different uses of one number. Seventy-two hours is the outer edge of the recommended window for starting prophylaxis; it is also a trigger for expert consultation rather than a wall, since the same summary contemplates starting later in high-risk exposures; and it is separately the interval within which the exposed worker should be re-evaluated. On the underlying question the guideline is candid: "The precise interval after which no benefit is gained from PEP is uncertain for humans."4

A fourth use lives on a different CDC page. "PEP is not recommended >72 hours after exposure" appears on CDC's clinical guidance for PEP, whose opening paragraph defines its subject as nonoccupational prophylaxis and which was last reviewed 10 February 2025.9 It is a real sentence in a real federal document about a different population, and it is not the occupational recommendation. For hepatitis C, prophylaxis is addressed and declined: "Postexposure prophylaxis of hepatitis C is not recommended for HCP who have occupational exposure to blood and other body fluids."6 For hepatitis B it depends on vaccination and antibody status, and the guidance notes that the effectiveness of hepatitis B immune globulin given more than seven days after exposure is unknown.7

Four things the bloodborne pathogens standard does not contain

Reading a regulation for what is missing is as informative as reading it for what is there, and it is checkable. We scanned the codified text ourselves.

The absence with the most practical weight is hepatitis C, carried entirely by the incorporation clause in (f)(1)(ii)(D). The absence readers ask about most often is different: the standard says nothing about drug or alcohol testing after an exposure, in either direction. That is an absence in the federal standard and nothing more — not a statement about what a facility may lawfully do or what a state requires.

Who the published documents say to call

Box 1 of the 2025 guidelines lists resources for expert consultation, and the first healthcare one is the "National Clinician Consultation Center (UCSF) Post-Exposure Prophylaxis Hotline at 888-448-4911".4 NIOSH prints the same number: "Call the Clinicians' Post Exposure Prophylaxis Line at 1-888-448-4911 if you have questions about medical treatment."8 So does CDC's HIV Nexus page.9

The Center's own PEP page, retrieved the same day, prints a different number and no 888 number at all: "Call for a Phone Consultation: 844-ASK-NCCC or 844-275-6222", with hours of 7 a.m. to 5 p.m. Pacific on weekdays and 10 a.m. to 2 p.m. at weekends.10 We report that as a discrepancy between published pages and nothing further: we did not telephone either number and cannot say whether the older one still routes, or which page is out of date. All of these pages describe a service for clinicians, not a line for a patient.

The documents do agree on the first step, and it is the step the forum threads show people skipping. NIOSH: "Report the incident to your supervisor." The 2025 guidelines: report "as soon as possible to their occupational health service." OSHA's duty in (f)(3) does not begin until a report exists.148

The splash nobody noticed

All of the above assumes the exposed person knows something happened. In the one series we retrieved that measured this directly, most did not. Four surgeons and their assistants wore 331 protective eye shields across 131 oculofacial plastic surgery cases; the shields were tested afterwards with a luminol blood-detection system and participants were questioned after each case. Blood was detected on 61% of the shields and in 80% of cases, "only 2% of blood splatters were recognized intraoperatively by the surgical participants", and splatter rates varied between individual surgeons from 29% to 90%.11

That is one study, in one subspecialty, at three sites, with four operating surgeons. It may mean unrecognised ocular contact is common in other settings; it does not establish it, and the certainty is low. The frequency question is handled separately in our article on operating-room exposure data.

What we could not retrieve, and where these documents differ

We did not obtain the professional-association guidance many facility protocols cite alongside the federal documents: those texts are copyrighted and sold, and this publication does not quote what it cannot show you. This page is the set of federal documents we could retrieve in full, not the complete set of published guidance.

The differences we can demonstrate are of scope and vintage rather than disagreements about care: the HIV guideline was rewritten in 2025 and the hepatitis documents were not; the hepatitis C schedule runs to 4–6 months while the HIV schedule now ends at week 12; the standard's source-testing sentence names two viruses where current guidance addresses three. We are not asserting a conflict between these documents about what should be done for a person.

What would change this answer

• A revision of the hepatitis B or hepatitis C guidance. Either could be replaced without a word of the CFR changing, because (f)(1)(ii)(D) points at whatever the Public Health Service currently recommends.
• An OSHA rulemaking or letter of interpretation addressing eye irrigation. Today the standard's only washing sentence is (d)(2)(vi), and its eyewash provisions reach research laboratories and production facilities.
• Your State Plan. Twenty-nine states and territories run their own occupational safety programmes and may impose more than the federal text quoted here. We have not surveyed them.
• A published resolution of the consultation-number discrepancy — either page updating, or the Center stating which line is current.
• The open question in the literature: what proportion of ocular exposures in general surgical practice go unrecognised. We found no US multi-specialty study measuring it.

Where this could be wrong

The strongest objection is that a citational brief can mislead by omission. By declining to assemble a sequence we hand the reader documents with different scopes, vintages and conditional structures, and a reader in distress may take a quoted fragment for a rule that applies to them when its own document attaches conditions we did not reproduce. We think that risk is smaller than publishing a synthesised protocol under a byline that has never managed an exposure — but it is a real trade, and we are naming it.

Two narrower risks. The keyword scan proves an absence in one text, the codified section as published in the 2024 annual edition; that is not an absence in OSHA's compliance directives, in State Plan standards, or in any professional guideline. And guidance moves: the 2013 HIV document was current for twelve years and is now superseded, which is the failure this page warns about. If you are reading long after the review date above, check the documents themselves.