How do I know a patient is connected? Updated October 20, 2020 15:15 A patient is connected when their connection status in KCAT says “connected”. If a patient’s connection status is “pending”, the patient has not yet entered their referral code and therefore, no ECGs will be transmitted to KardiaPro. Related articles Who do I contact if my patient’s ECGs are not uploading to KardiaPro? Do I give every patient the same referral code How do I generate a referral code and connect a patient? How long does the referral code last?