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Annual Studies


Per recommendations of the Cystic Fibrosis Foundation the following studies are recommended to be done annually:

Blood Work: (Fasting):

To check blood counts, electrolytes, liver function, clotting times, fat soluble vitamin levels, liver function, lipid panel, immunoglobulins

Oral Glucose Tolerance Test: (Fasting)

All patients ten years and older are recommended to have an oral glucose tolerance test once annually to screen for CF Related Diabetes. This is usually done at the time of annual studies and can be done the same day as all other annual bloodwork.

The test takes 2-3 hours to complete.  Blood glucose levels are taken in fasting state, one hour and two hours after glucola. We also obtain a Hemoglobin A1C, which indicates what your average glucose control has been for the past three months.

Pediatric and adolescent patients will usually be scheduled to have blood work and oral glucose tolerance test at the Same Day Surgery at Bristol-Myers Squibb Children’s Hospital at RWJUH. The CF team work with you to arrange arrange the admission and our prior authorization department will work with your insurance carrier to get approval for payment prior to the day of testing.


Chest X-Ray:  

RWJ’s X-Rays now are done at 10 Plum Street office (732-249-4410).  If done at hospital other than RWJ….please ask for CD and bring that and report to next clinic appt.

Pediatric patients coming to Same Day Surgery will have Chest X-Ray during same visit.   


Full Pulmonary Function Tests: (done at PFT lab at RWJUH)

To do complete lung function evaluation.

              *Do not take bronchodilator prior to test.

Pediatric patients coming to Same Day Surgery will PFT’s scheduled on same day.


Dexascan:  (Adult-age patients only) To check bone mineral density/ presence of osteopenia or osteoporosis

This test is done anywhere between 1 and five years apart, depending on the results.  Normal dexa scans do not need to be repeated for five years.  Abnormal will require treatment and will be repeated within 1-2 years. 



Any questions please speak with your CF Team member