NPC PATIENT RELEASE I-131 CALCULATION

This program is intended as a mathematical aid only. The requirements of NRC regulation 10 CFR 35.75 or equivalent state regulation must be met prior to the release of any patient.

This program calculates the dose to other individuals from a patient who was administered a dosage of 131I sodium iodide. The procedure is described in NUREG-1556, Vol. 9, Ver. 2, 2008. The default values are those proposed in the Regulatory Guide. If patient-specific values have been measured, those values should be used below.

Enter the values or select the medical condition in the box, below. Click the label for more information about the entries (i.e. click the words, “Initial Activity” to see an explanation of what should be entered there).

Hyperthyroid
Postthyroidectomy
Initial Activity
mCi
  Uptake Fraction
Effective half life / extrathyroidal
days
  Effective half life / thyroidal
days
Occupancy factor / first eight hours   Occupancy factor / after eight hours
Distance to patient
cm
  Patient attenuation factor
   
Initial Activity {{ InitialActivity }} mCi   Uptake Fraction {{ F2 }}
Effective half life / extrathyroidal {{ T1eff }}   Effective half life / thyroidal {{ T2eff }}
Occupancy factor / first eight hours {{ E1 }}   Occupancy factor / after eight hours {{ E2 }}
Distance to patient {{ r }}   Patient attenuation factor {{ PAT }}


Dose to members of the public:  {{ d }} mrem

Calculate another Patient Release

Bring up a special Printable Document

Date:
Facility:
Patient ID:
Authorized User:
Comments:

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