IV therapy has become a standard add-on for Washington aesthetic and wellness clinics, and it is usually staffed by whoever is available. Washington’s rules are more granular than that approach assumes.
Under RCW 18.360, a medical assistant-certified may:
- Establish intravenous lines for diagnostic or therapeutic purposes, without administering medications, under the supervision of a health care practitioner; and
- Administer intravenous injections of diagnostic or therapeutic agents under the direct visual supervision of a health care practitioner.
Those are two different acts with two different supervision standards, and the difference between them is the drug. Placing the line is one thing. Putting something into it is another.
Why clinics get this wrong
Because in the room it feels like one task. The MA-C sets up, cannulates, hangs the bag and starts the infusion, and nobody experiences that as crossing a line. But the moment a therapeutic agent goes in, Washington expects a practitioner to be visually supervising — present and watching, not down the corridor and reachable.
A second detail worth knowing, because it shows how narrowly the statute is drawn: Washington carved out a specific exception allowing an MA-C to give intramuscular injections for known or suspected syphilis infection without immediate supervision, where a practitioner supervises through interactive audio or video telemedicine. When a legislature writes an exception that specific, it is telling you how it reads the general rule.
Delegation is authorisation, not assumption
The statute defines delegation as direct authorisation granted by a licensed health care practitioner to a medical assistant to perform functions authorised in the chapter, which fall within the scope of practice of the practitioner and within the training and experience of the medical assistant.
Three conditions, all of which have to hold: authorised by the chapter, within the practitioner’s scope, and within this individual MA’s training and experience. “She has done hundreds of them” satisfies only the third.
Where the order comes from
None of this touches the separate question of who evaluates the patient and orders the infusion. That remains a prescriber’s job, and the marketing around IV therapy remains the thing most likely to attract attention — NAD+ claims especially. Staffing the line correctly and describing the service defensibly are two separate pieces of work.
A staffing checklist for a Washington IV programme
- Who evaluates and orders, and are they licensed in Washington?
- Who places the line, and are they an MA-C, an RN or an LPN?
- Who administers the agent, and is a practitioner visually supervising when an MA-C does it?
- Is the delegation documented as authorisation, with the individual’s training evidenced?
- Does the protocol cover rate, contraindications, monitoring and escalation?
- Has your website copy been read against what you actually claim to treat?
Related reading
Frequently asked questions
Can a medical assistant start an IV in Washington?
A medical assistant-certified may establish intravenous lines for diagnostic or therapeutic purposes without administering medications, under the supervision of a health care practitioner.
Can a medical assistant give an IV injection?
Only under the direct visual supervision of a health care practitioner.
What does delegation mean under RCW 18.360?
Direct authorisation from a licensed practitioner to perform functions the chapter permits, within the practitioner’s scope and within the medical assistant’s training and experience.
Who orders the infusion?
A provider with prescriptive authority who has evaluated the patient. The supervision rules govern who may perform the task, not who may decide it is appropriate.
General information about Washington scope of practice, not legal advice. Statutes change. Confirm your obligations with healthcare counsel licensed in Washington.