They are like a hospital ER without the rest of the hospital attached to it.
If you have to go to another portion of the hospital (example surgery) you will be transferred by ambulance to the affiliated hospital.
In her case, one of the little Doc-in-a-box (Care Now) standalone clinics might have been best if she had not passed the time window for suturing.
“They are like a hospital ER without the rest of the hospital attached to it.”
No, there are both standalone ERs and urgent care clinics. Different business models, different staffing, different equipment, and differing levels of care.