Written informed consent (and assent when applicable) obtained from participant or participant's legally authorized representative
For Adults: Must be able to consent on one own's behalf (i.e., cannot lack cognitive capacity to consent due to the required patient-reported outcomes)
Be willing and able to adhere to the study protocol requirements
Age ≥ 12 years at time of enrollment
CF diagnosis based on two CF causing mutations and/or positive sweat test according to CFF diagnostic criteria
CFRD diagnosis ≥ 5 years at time of enrollment
You may not be if
History of any illness or condition that, in the opinion of the investigator might confound the results of the study or pose an additional risk to the subject
History of transplant
Pregnancy reported by participant at time of consent or at any point during active study participation
Erratic, accelerated or mechanically controlled irregular heart rhythms including arrhythmias
Carotid or aortic valve stenosis
Peripheral artery disease or leg artery disease
Generalized constriction or localized spasm of muscular conduit arteries such as seen immediately after hypothermic cardiopulmonary bypass surgery or accompanying Raynaud's phenomena or intense cold.
Possible exclusions based on investigator medical provider assessment (additional precautions may be followed to allow inclusion):
* Pressure reading should not be conducted on a limb where there is intravenous access, arterio-venous shunt, or where circulation is compromised.
* Pressure reading should not be conducted on the side of the body that a mastectomy was done.
Clareo Health | Studying the Presence of CFRD Complications With Thoughtful Recruitment (SPeCTRuM)