Inpatient
A patient is any recipient of health care services. The patient is most often ill or injured and in need of treatment by a physician, advanced practice registered nurse, physiotherapist, physician assistant, psychologist, dentist, podiatrist, veterinarian, or other health care provider.
Wikipedia
Inpatient (noun)
A patient whose treatment needs at least one night’s residence in a hospital; a hospitalized patient.
Impatient (adjective)
Restless and intolerant of delays.
Impatient (adjective)
Anxious and eager, especially to begin something.
Impatient (adjective)
Not to be borne; unendurable.
Impatient (adjective)
Prompted by, or exhibiting, impatience.
“impatient speeches or replies”
Wiktionary