Thanks for your concerns.
Acutely decompensation of respiratory status (
labored breathing) should always be treated as an urgency or emergency depending on the case, thus I would recommend taking your dad to urgent or emergent care for evaluation.
Chills, sweats, cough and
difficulty breathing in an elderly patient with
dementia might represent a serious respiratory infection
Wish you the best health,,
Dr Brenes-Salazar
Mayo Clinic Rochester