Cold Chain In Phc

SKILL PRESENTATION COLD CHAIN AT PHC. COLD CHAIN INDICATORS AT PHC.

Hema

DEFINITON. COLD CHAIN AT PHC: - ICELINED REFRIGERATORS . -

COLD BOXES . VACCINE CARRIERS. DAY CARRIERS. ICE PACKS. THERMOMETERS AND VVM.

ESSENTIAL ELEMENTS PERSONNEL EQUIPMENT MAINTAINENCE OF EQUIPMENTS TRANSPORT MONITORING

ICE LINED REFRIGRATORS CAPACITY :140 L. NET VACCINE STORAGE CAPACITY: 85 L. TWO SECTIONS: SECTION A SECTION B DO’ S AND DONT’S

ICE LINED REFRIGERATOR

STORAGE OF VACCINES VACCINES NOT TO BE FROZEN. RECONSTITUTED / MULTIDOSE VACCINE. DILUENTS . SHELF LIFE VS EXPIRY DATE. COLD LIFE OF VACCINE. FIRST IN FIRST OUT PRINCIPLE.

DURING POWER FAILURE : < 4 HRS – > 4 HRS – DURING DEFROSTING VACCINE STOCK .

THERMOMETERS – DIAL AND STEM

COLD BOX USED FOR TRANSPORTATION AND STORAGE (EMERGENCY ) OF VACCINES . 5 L ( 1500 DOSES OF VACCINE) . 20 L ( 6000 DOSES OF VACCINE) . NET VACCINE STORAGE CAPACITY: 22 L INSULATION THICKNESS : 105 MM HOLD OVER TIME : 5 L – 90 HRS. 20 L – 6 DAYS .

VACCINE COLD BOX

VACCINE CARRIERS FOR CARRYING SMALL QUANTITES OF VACCINE ( 16- 20 VIALS) . VACCINE STORAGE: 1.7 L INSULATION THICKNESS : 40 MM . FOUR ICEPACKS. HOLD OVER TIME: 48 HRS.

VACCINE CARRIER

DAY CARRIERS CARRYING SMALL QUANTITIES OF VACCINE ( 6 -8 VIALS ) . HOLD OVER TIME: 6 HRS. 2 ICEPACKS. USE IS NOT ENCOURAGED.

ICE PACKS USED TO COOL COLD BOXES, VACCINE CARRIERS . VOLUME: 0.36 L WT: 80 GMS.VIAL HOLES : 22 MM, 28 MM . FLAT PLASTIC CONTAINERS THAT ARE 7/8 TH FILLED WITH WATER .

FROZEN TO -20 * C . PREPARATION OF ICEPACKS. ? ADDITION OF SALT TO ICE PACKS. SWEATING OF ICEPACKS .

VACCINE VIAL MONITOR

DEFINITION . INFLUENCE OF TIME AND TEMPERATURE. TYPES OF VVM.

VVM

ORDER OF HEAT SENSITIVITY RANGE MOST SENSITIVE

LEAST SENSITIVE

BCG ( RECONSTITUTED) OPV MEASLES HEP B DPT DT BCG TT

WHY SHOULD VVM BE USED? IS THE VVM ACCURATE? DO ALL THE VACCINES CARRY VVM? IF A VIAL CARRIES A VVM , DO WE NEED TO KEEP IT IN COLD CHAIN?

WILL THE COLOUR CHANGE REVERSE IF RETURNED TO COLD CHAIN ?

WHAT HAPPENS IF EXPOSED TO BRIEF EXPOSURE OF MODERATE HEAT?

CAN A VACCINE WHICH HAS CROSSED ITS EXPIRY DATE BE USED IF THE VVM IS INTACT?

WILL VVM REGISTER IF VACCINE FREEZES? ? VVM WITH SOME HEAT EXPOSURESHOULD WE USE IT ? IS THERE A LIMIT TO NUMBER OF TIMES AN UNOPENED VIAL WITH VVM CAN BE TAKEN FOR OUTREACH? DO VVM INCREASE THE COST OF COLD CHAIN?

VACCINE WITH VVM – TOBE USED IN AREAS WITH POOREST COLDCHAIN. – ARE NOT PROXY INDICATORS OF HEAT EXPOSURE OF OTHER VACCINES WITHOUT VVM .

VACCINES WITHOUT VVM – SHOULD BE USED FIRST . SHAKE TEST. REVERSE COLD CHAIN.

SHAKE TEST

COLD CHAIN FAILURE DEFINITION . WHAT TO DO ? WHOM TO CONTACT ?

DO YOU KNOW? DOWN TIME RESPONSE TIME COLD CHAIN SICKNESS RATE SICKNESS REPORTING