Medical clearance usually requires one or two visits to the office.
These are usually the following: Communicable disease of public health significance; Lacking required vaccinations; Physical or mental disorders with harmful behavior; and Drug abuse or addiction.
For I-693 forms signed after November 1, 2023, the form is valid indefinitely.
You may still be eligible for adjustment of status if you apply to the USCIS for a waiver and are granted one