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What are the best practices for wearing and reading dosimetry cards?

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If you work in a laboratory that uses radiation sources, you need to wear and read dosimetry cards to monitor your exposure levels. Dosimetry cards are small devices that measure the amount of radiation absorbed by your body over time. They can help you avoid health risks and comply with safety regulations. In this article, you will learn the best practices for wearing and reading dosimetry cards in your laboratory.

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Abdullah Bin Arshad

Medical Laboratory Technologist | Healthcare Management | I Streamline Laboratory Operations for Healthcare…

1 Choose the right type of dosimetry card

There are different types of dosimetry cards for different radiation sources and exposure scenarios. For example, thermoluminescent dosimeters (TLDs) use crystals that emit light when heated, while optically stimulated luminescence (OSL) dosimeters use aluminum oxide that emits light when exposed to laser. You should consult your radiation safety officer (RSO) or your supervisor to determine which type of dosimetry card is suitable for your work.

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Abdullah Bin Arshad

Medical Laboratory Technologist | Healthcare Management | I Streamline Laboratory Operations for Healthcare Organizations
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?? Selecting the appropriate dosimetry card tailored to the specific radiation types and energy levels encountered in your work environment is paramount. Ensuring compatibility with the radiation sources present and adhering to regulatory standards guarantees accurate monitoring of radiation exposure.

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Amin Mohsenzadeh

Medical Microbiologist | Microbiome, CardioMicrobiology & NeuroMicrobiology
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Best practices for dosimetry cards include wearing them properly, avoiding tampering, keeping accurate records, storing them correctly, submitting them for regular reading, interpreting results carefully, and receiving adequate training on their use and interpretation.

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2 Wear the dosimetry card correctly

You should wear the dosimetry card on the front of your body, between your neck and your waist, and close to your skin. You should not cover it with clothing, jewelry, or other objects that could interfere with the radiation detection. You should also avoid bending, folding, or damaging the dosimetry card in any way. If you wear more than one dosimetry card, you should place them at different locations on your body, such as on your chest, abdomen, or wrist.

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Abdullah Bin Arshad

Medical Laboratory Technologist | Healthcare Management | I Streamline Laboratory Operations for Healthcare Organizations
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?? Proper wearing of dosimetry cards is foundational to reliable radiation monitoring. Placing the card at chest level, outside protective clothing, ensures accurate exposure measurement. Consistency in positioning and avoidance of obstruction guarantee precise data collection reflecting actual radiation exposure.

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3 Read the dosimetry card regularly

You should read the dosimetry card at least once a month, or more frequently if your work involves high radiation levels or changes in radiation sources. You should use a calibrated reader that matches the type of dosimetry card you have. You should follow the instructions of the reader and the manufacturer of the dosimetry card to ensure accurate results. You should also record and report your readings to your RSO or your supervisor as soon as possible.

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Abdullah Bin Arshad

Medical Laboratory Technologist | Healthcare Management | I Streamline Laboratory Operations for Healthcare Organizations
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?? Regular and timely reading of dosimetry cards is indispensable for monitoring radiation exposure trends and identifying potential hazards. Scheduling routine assessments in accordance with regulatory guidelines enables proactive mitigation measures and safeguards personnel against excessive radiation exposure risks.

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4 Store the dosimetry card properly

You should store the dosimetry card in a cool, dry, and dark place when you are not wearing it. You should avoid exposing it to heat, moisture, sunlight, or other radiation sources that could affect its performance. You should also keep the dosimetry card away from magnets, metal detectors, X-ray machines, or other devices that could erase or alter its data. You should label the dosimetry card with your name, ID number, and date of issue.

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Abdullah Bin Arshad

Medical Laboratory Technologist | Healthcare Management | I Streamline Laboratory Operations for Healthcare Organizations
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?? Effective storage practices preserve the integrity and accuracy of dosimetry cards. Shielding the cards from excessive heat, moisture, and radiation sources prevents inadvertent damage or alteration of data. Utilizing designated storage areas and protective sleeves maintains the reliability and longevity of dosimetry records.

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5 Replace the dosimetry card periodically

You should replace the dosimetry card every three to six months, or sooner if it is damaged, lost, or expired. You should return the old dosimetry card to your RSO or your supervisor for disposal or recycling. You should also update your personal information and exposure history with your new dosimetry card. You should never reuse or share a dosimetry card with another person.

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Abdullah Bin Arshad

Medical Laboratory Technologist | Healthcare Management | I Streamline Laboratory Operations for Healthcare Organizations
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?? Periodic replacement of dosimetry cards ensures continued accuracy and reliability in radiation monitoring. Adhering to established replacement schedules, typically every monitoring period or as recommended by regulatory authorities, guarantees up-to-date exposure records and maintains compliance with safety standards.

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6 Follow the safety guidelines and protocols

You should always follow the safety guidelines and protocols of your laboratory and your organization when working with radiation sources. You should wear appropriate protective equipment, such as gloves, goggles, lab coats, and aprons. You should also limit your exposure time, distance, and shielding. You should report any incidents, accidents, or anomalies involving radiation to your RSO or your supervisor immediately. You should also undergo regular medical check-ups and training sessions to ensure your health and safety.

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7 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

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What are the best practices for wearing and reading dosimetry cards?

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1 Choose the right type of dosimetry card

2 Wear the dosimetry card correctly

3 Read the dosimetry card regularly

4 Store the dosimetry card properly

5 Replace the dosimetry card periodically

6 Follow the safety guidelines and protocols

7 Here’s what else to consider

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