Nursing vs residential home staffing: HCA, SCA or RGN?

“Care home” covers two very different kinds of service. A residential home and a nursing home can look alike from the car park, but behind the front door they are registered differently, they support people with different levels of need — and they need different people on the rota.

Getting the staffing mix right is not a matter of preference. It decides whether residents get the care their plans describe, whether medication is given safely, and whether your service meets the conditions of its registration. This guide sets out the differences plainly, and shows which of the three main grades — HCA, SCA and RGN — belongs where.

The difference between nursing and residential homes

In England, the Care Quality Commission (CQC) registers care homes as one of two service types: a care home service without nursing — usually called a residential home — or a care home service with nursing, usually called a nursing home.

Both provide accommodation and personal care: help with washing, dressing, eating, moving around and continence. What a nursing home adds is nursing care delivered on site by registered nurses — the clinical assessment, treatment and monitoring that some residents need around the clock.

Many homes run both kinds of care in the same building — a residential floor and a nursing floor, for example, or a separate dementia unit. Each part must be staffed for the care it is registered to provide.

Does a residential home need a nurse?

Not on its own staff. A residential home is not registered to provide nursing care, so it doesn't employ nurses for that purpose. When a resident needs nursing — a wound dressing, catheter care, an injection — it comes from the local community nursing team, who visit.

That changes if a resident's needs grow beyond what visiting nurses can reasonably provide. If someone now needs nursing care around the clock, the conversation is usually about moving them to a nursing placement, not about adding a nurse to a residential rota.

HCA, SCA and RGN: who does what

The three grades are not a ladder of “more” and “less” — they cover different responsibilities. Booking the right one for the task is what keeps a shift safe.

• HCA — Health Care Assistant. The backbone of every shift: personal care, moving and handling, meals, activities and the small moments that make a home feel like home.
• SCA — Senior Care Assistant. An experienced carer who leads the care team, administers medication with assessed competency, handles handovers and is the first point of contact when something changes.
• RGN — Registered General Nurse. A nurse on the NMC register who delivers nursing care, makes clinical decisions and leads the shift in a nursing home. (On today's register an adult nurse appears as a Registered Nurse in the adult field — see how to check a nurse's NMC PIN.)

Medication and the senior carer role

In residential homes, medication rounds are usually given by senior carers. NICE guidance on managing medicines in care homes expects anyone administering medicines to be trained and assessed as competent — having “done meds before” somewhere else is not the same thing.

That's why a senior carer shift can't simply be filled by any care assistant. If your SCA is off and you book an HCA instead, someone else on the shift must be competent to give medication and to lead — otherwise the medication round, and the shift, is at risk.

Dementia care: residential or nursing?

Both. Many people living with dementia are well supported in residential care; others also have nursing needs and live in nursing homes or specialist dementia nursing units. The registration follows the care the person needs, not the diagnosis.

Whatever the setting, dementia care puts two extra demands on staffing:

• Dementia training. Staff need to understand communication, distress and behaviour that challenges, not just the practical tasks.
• Familiar faces. A resident living with dementia can find a stranger unsettling. Having the same staff — including the same agency staff — come back makes a real difference to their day.

How many staff does each need?

There is no fixed legal staffing ratio for care homes in England — for residential or nursing homes. Regulation 18 requires you to deploy enough suitably qualified, competent and experienced staff to meet people's needs, and it's up to you to show how you decide.

Most homes use a dependency tool: an assessment of each resident's needs that converts into care hours per shift, reviewed whenever needs change. The mix of grades matters as much as the headcount — five carers on a nursing floor with no nurse is not a safe shift, however many people are on it.

When to use agency staff in a nursing or residential home

Temporary agency staff work best as part of your staffing plan, not only as a last resort. Most nursing and residential homes use them for four kinds of gap:

• Short-notice absence — sickness or an emergency on the day. Our guide to covering last-minute sickness walks through the first hour.
• Planned absence — annual leave, training days and maternity leave.
• Vacancies — covering a post safely while you recruit.
• Changes in need — a resident who needs one-to-one support for a period, or a unit whose dependency has risen.

The rule is the same as for your own team: book the grade the shift needs. That means an RGN for nursing cover, a senior carer where medication and shift leadership are needed, and HCAs for personal care. Then try to use the same agency staff repeatedly, so they already know your residents, your building and your routines.

Choosing an agency? Our care staffing agency checklist covers the questions to ask. For nurses in Bristol, see our nursing agency in Bristol.

Five staffing mistakes to avoid

1. Covering a nurse with a senior carer. In a nursing home, only another registered nurse can fill an RGN gap.
2. Booking an HCA as a senior. If the shift needs medication given and a shift leader, the grade you book must be able to do both.
3. Over-grading to be safe. Booking a nurse where a senior carer is needed takes a nurse away from where nursing is needed — and costs more.
4. Forgetting the night shift. Night dependency is often lower, but not zero: check who gives the night medication and who leads.
5. Losing continuity. A different agency worker every shift means repeated inductions and residents who never get to know the people caring for them.

Frequently asked questions

This article is general guidance for care providers in England and is not legal or clinical advice. Follow your own policies, your registration conditions and current CQC and NICE guidance.