05.06.2014 Views

Prevention Guide - Safe Handling of Hazardous Drugs - Irsst

Prevention Guide - Safe Handling of Hazardous Drugs - Irsst

Prevention Guide - Safe Handling of Hazardous Drugs - Irsst

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

5. MEASUREMENT OF WORK SURFACE CONTAMINATION<br />

CAUSED BY ANTINEOPLASTIC AGENTS<br />

APPENDIX 5 - Measurement <strong>of</strong> Work Surface Contamination Caused by<br />

Antineoplastic Agents<br />

Services Provided by the INSPQ Toxicology Laboratory<br />

At the request <strong>of</strong> the <strong>Hazardous</strong> Drug Committee (which procured the necessary funding), the INSPQ Toxicology<br />

Laboratory has developed a method for estimating the work surface contamination in institutions caused by<br />

antineoplastic agents. The tests are performed in the INSPQ laboratory. However, the specimens are collected in the<br />

institutions (in the clinics and hospitals) by the on-site workers, using sampling kits provided by the INSPQ.<br />

5.1 Products Tested<br />

Cyclophosphamide, ifosfamide and methotrexate, with LOQ* = 0.01 ng/cm²<br />

* LOQ = Limit <strong>of</strong> quantification<br />

5.2 Cost<br />

$50 per specimen collected. We recommend 12 specimens per pharmacy. Samples may also be taken in the care areas<br />

or at other steps <strong>of</strong> the medication circuit, depending on the client’s objectives.<br />

5.3 Method Summary<br />

The analytical method is based on the recent article by Larson. 4 A standard-sized cloth, soaked in a special organic<br />

solution (10% acetonitrile, 25% methanol, buffered at pH 6), is used to wipe the work surfaces. Each specimen covers<br />

600 cm² (20 cm x 30 cm), i.e., approximately the size <strong>of</strong> a piece <strong>of</strong> 8 ½ x 11 in. paper. The cloths are placed in a<br />

plastic tube and sent to the INSPQ laboratory. In the laboratory, 10 mL <strong>of</strong> the same solution are added and the cloth is<br />

agitated to release the products. An aliquot <strong>of</strong> the resulting solution is then analyzed using HPLC-MS-MS (an<br />

advanced spectrometry technique) to measure the concentration <strong>of</strong> antineoplastic agents present. The results are<br />

expressed in nanograms** per cm² (ng/cm²).<br />

** 1 nanogram = 0.000 000 001 g, i.e., one billionth <strong>of</strong> a gram<br />

4 RR Larson, MB Khazaeli, HK Dillon. “Monitoring method for surface contamination caused by selected antineoplastic<br />

agents”, Am. J. Health-Syst Pharm , 2002; 59(3): 270-7.<br />

PREVENTION GUIDE – SAFE HANDLING OF HAZARDOUS DRUGS ASSTSAS A5-1

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!