What You Can and Can't Do as a CNA in California
Cna Scope Of Practice In California: The Real Picture
The California Department of Public Health handles CNA certification, and the scope of practice is defined in the California Health and Safety Code and the Nurse Practice Act. It's not particularly wide. You're allowed to do things like take vital signs, feed patients, bathe them, turn and reposition them, and document what you observe. That's the core of it. What you can't do is much of anything else that requires clinical judgment, and the line between what's allowed and what's not is where most people get tripped up. I've seen CNAs get in trouble for simple mistakes. A buddy of mine worked at a skilled nursing facility in Central Valley and gave a resident a prescribed PRN medication because the LPN was "off the floor" and the resident kept asking. He thought he was helping. The state found out six months later during a routine survey, and his certification was suspended for a year. That's how this works. Helpfulness doesn't matter. The scope is the scope. Here's what's actually in the CNA scope in California:
- Vital signs (blood pressure, pulse, respiration, temperature)
- Basic hygiene care (bathing, oral care, dressing assistance)
- Feeding and hydration assistance
- Positioning and ambulation
- Bowel and bladder care, including catheter bag emptying
- Documentation of observations and reporting changes to the RN
- Eating and nutritional intake recording
- Specimen collection (urine, stool) — though not the collection itself in some facilities
- Measuring and recording height and weight
What's explicitly outside the scope: administering medication (except possibly in specific program settings with extra certification), making nursing assessments, developing care plans, performing sterile procedures, or giving clinical judgments about a patient's condition. The one thing nobody explains well is the reporting obligation. You're not just allowed to report changes in a resident's condition — you're legally required to. If you notice something and say nothing, that's a scope violation whether you crossed into practice territory or not. The failure to report is treated the same way as practicing beyond your scope. I learned this the hard way. A resident at my old facility had clear signs of a UTI — confusion, fever, changes in urine appearance. I mentioned it to the charge nurse but didn't document it formally because I assumed it was already on the RADAR. Two days later, the resident was in the hospital with sepsis. The surveyor asked for my notes and I had nothing. That incident stayed with me. Document what you see. Even if it feels redundant. Another counter-intuitive thing: being asked to help with something slightly outside your scope doesn't mean you have to do it. I've been told by RNs to "just hang a bag of IV fluids" or "check a blood sugar" because they're overwhelmed. You don't do those things. Not without additional certification. Period. It's uncomfortable in the moment but far better than losing your certification over something that seemed minor at the time.
If you're working in a hospital setting versus a skilled nursing facility, the day-to-day scope is essentially the same, but the expectations around documentation speed and detail can differ. Hospitals tend to want more frequent and granular charting. SNFs allow a bit more latitude on timing but expect you to catch the slow declines. Both are fine. Just know which environment you're in. The CNA exam in California is split into a written and a skills portion. The skills test includes handwashing, measuring blood pressure, and assisted walking. It's straightforward if you've done the training. The written portion covers infection control, communication, and basic anatomy. Pass both and you're listed on the California CNA Registry. That registry is what employers check, and it's public. Any suspension or complaint shows up there. If you need the official scope document, go to the California Department of Public Health website and search for "CNA scope of practice" or look under the Environmental Health Licensing and Facilities branch. The exact code sections are 1746 and 1750 of the Health and Safety Code. They're not long reads. About four pages total.
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The biggest mistake new CNAs make is assuming that because a task seems small, it's within scope. It's not about how big the task looks. It's about whether it requires nursing judgment or training you haven't been certified to perform. When in doubt, ask. Or better yet, watch what the RN does first and don't volunteer for anything you haven't been explicitly trained and approved for.