NLS8400268, Rev 3 to Emergency Plan Implementing Procedure EPIP 5.7.14, Stable Iodine Thyroid Blocking (Ki)

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Rev 3 to Emergency Plan Implementing Procedure EPIP 5.7.14, Stable Iodine Thyroid Blocking (Ki)
ML20107H581
Person / Time
Site: Cooper Entergy icon.png
Issue date: 11/05/1984
From: Pilant J
NEBRASKA PUBLIC POWER DISTRICT
To: Martin R
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
EPIP-5.7.14, NLS8400268, NUDOCS 8411090136
Download: ML20107H581 (4)


Text

3; f v .

EMERGENCY PLAN IMPLEMENTING PROCEDURE 5.7.14 STABLE IODINE THYROID BLOCKING (KI)

= s I.' PURPOSE A. The purpose of this procedure is to define under what emergency condi-tions Potassium Iodide (KI) should be administered to station personnel and who has the authority to determine when and at what dosages KI should be administered.

II. DISCUSSION A. Effectiveness.

1. KI is an effective means of blocking radiciodine from the thyroid gland. If possible, it should be administered approximately 1/2 hour to 1 day before exposure for maximum blockage. Final uptake is halved if KI is administered within 3 to 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> af ter exposure.

Little benefit is gained if it is administered 10 to 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> after exposure.

B. Dosage.

1. Once taken,'and the concentration is verified or estimated by dose calculations, the tablets should be taken for 10 days post-exposure.

Dosage is one (130 mg) tablet per day. Individuals suspected of O inhalation of airborne contaminant should receive thyroid counts on a regular basis throughout the KI treatment period to verify effectiveness of treatment and to estimate dose commitment.

C. Precautions / Side Effects.

1. Potassium Iodide should not be used by individuals allergic to iodine. Usually side effects occur when the dose is higher than that recommended for a long period of time. Possible side effects include skin rashes, swelling of the salivary gland, and iodism (metallic taste, burning mouth and throat, sore teeth and gums, symptoms of a head cold, and sometimes stomach upset and diarrhea).

If the side effects are severe or if an allergic reaction is experienced, stop taking KI and contact a doctor for further instruction.

III. REFERENCE MATERIAL A. CNS Emergency Plan.

B. NUREG 0654, Revision 1.

l C. NCRP 55, Protection Of The Thyroid Gland In The Event Of Release Of Radiciodine, National Council on Radiation Protection and Measurements, 1977.

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s IV. PREREOUISITES A. Potassium Iodide is to bc administered:

1. Whenever a calculated radioiodine dose of 10 rem or greater to the
  • thyroid is likely to be received.
2. If possible, prior to undertaking a life-saving operation where high levels of radiciodine are suspected and no current air analy-uis is available.

V. LIMITAT))NS A. Refet to Section II. for information on effectiveness and dosage.

VI. PRECAtTIONS A. KI should not be administered to personnel allergic to iodine.

B. KI will be administered on a voluntary basis.

VI

I. PROCEDURE

A. Stable Iodine Thyroid Blocking (KI).

1. The Emergency Director, acting on the recommendations of the O Radiological Manager, will determine when and to whom KI may be administered.
2. The Radiological Manager, or his designee, will:
a. Obtain bottle (s) of 130 mg KI tablets from the Control Room TSC, EOF, AEOF, Chemistry and Health Physics, Instrument and Control / Electrical, or Mechanical / Maintenance OSC.
b. Dispense one tablet to each individual that has an emergency team assignment and may potentially enter a high-level airborne radioiodine environment.
c. Ensure that records (Attachment "A") are maintained for those .

individuals who received KI tablets.

3. KI tablets may be provided to non-NPPD emergency response organi-zations (i.e. States, NRC, FEMA, etc.) for distribution to their emergency workers. Administration of KI to non-NPPD personnel will be the responsibility of the organizations to which these personnel belong.

VIII. ATTACHMENTS A. Attachment "A", Potassium Iodide Distribution Record.

O Procedure "mber EPIP 5.7.14 Date / O -M - $ " , Revisten 3 Page 2 Of 2 Pages

ATTACHMENT "A" EMERGENCY PLAN IMPLEMENTING PROCEDURE 5.7.14 STABLE IODINE THYROID BLOCKING (KI) s POTASSIUM IODIDE DISTRIBUTION RECORD SOCIAL SECURITY DATE/ TIME NAME NUMBER ORGANIZATION s

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!'rneedure Number IT _ .1 . Date (O .)$ QQ _ Hevision 3 Pace 1 Of 1 Pacer

GENERAL OFFICE

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M= Nebraska Public Power District NLS8400268 November 5, 1984 Mr. Pobert D. Martin Regional Administrator U.S. Nucicar Regulatory Commission Region IV 611 Ryan Plaza Drive Suite 1000 Arlington, Texas 76011

Subject:

Emergency Plan Implementing Procedures Cooper Nuclear Station NRC Docket No. 50-298, DPR-46

Dear Mr. Martin:

Pursuant to the requirements of 10 CFR 50 Appendix E, Section V,

" Implementing Procedures", Nebraska Public Power District is submitting one copy of EPIP 5.7.14, Revision 3, " Stable Iodine Thyroid Blocking (KI)".

If you have any questions regarding this EPIP, please contact my office.

Sincerely, MA J. . Pilant Manager, Technical Staff Nuclear Power Group

/cmk Enclosure cc: Document Control Desk w/2 enc.

U.S. Nuclear Regulatory Commission Washington, DC 20555 6

Yyo 1

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