Patch Test
Advanced Dermatology, PC Services Patch Test

Allergy Patch Test

What is the Patch Test?

The Patch Test is a reliable allergen patch skin test designed to help your doctor determine whether or not you are allergic to any substances included on the test panel.It is a unique, direct “in vivo” test independent of any laboratory procedure. High reliability is achieved through use of highly purified, standard test substances.Chemotechnique Diagnostics offers the widest range of commercially available allergens for patch testing covering more than 350 different allergens.

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How Long Will I Wear the Test Patch?

Your doctor will ask you to return after the panels have been on your back for a minimum of 48 hours.

Are There Activities I Should Avoid While the Test Patch is On My Back?

Just a few: When bathing or showering, you must be careful not to get the test panel or surrounding area wet. If the test panel does become wet, it may loosen, allowing the test substances or marking ink to be washed away.For the same reason, any activity that may cause you to sweat or cause the test panel to loosen, such as sun bathing or exercising, should also be avoided.If for any reason an area of the test panel does become loose, you should immediately reattach it with a hypoallergenic adhesive tape.

 

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When Will My Results Be Read?

The date and time of your next visit will be given to you during your visit. It is very important that you keep this appointment. Since a reaction to any of the test substances will continue to develop even after the panels are removed, your doctor will determine how long you should wait before your next appointment.

What is the Doctor Looking For?

At each of your next appointments, your doctor will carefully examine the test area for signs of an allergic reaction. This reaction usually consists of rash with swelling, redness, and tiny blisters. Redness alone, however does not necessarily mean that you have had an allergic reaction.

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What Should I do If the Test Area Itches or Burns?

Itching and burning sensations are common with patch testing. If itching and burning sensations become severe, you should contact your doctor.Try not to scratch the test area. If you do, the skin may become irritated and itch even more. Skin that has become red and irritated by scratching will make it difficult by your physician to interpret the result of the test.

Allergic to One or More Substances?

If you are allergic, your doctor will provide information on where in your everyday surroundings you are likely to come in contact with the substances to which you are allergic.Your doctor will also tell you how best to avoid these substances and possibly suggest alternatives to them.

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Negative Test Result

The PATCH TEST is designed to identify the most common allergens that cause allergic contact dermatitis. A negative test result will minimize the need to restrict your use of products that contains these allergens.Furthermore, a negative result provides valuable information that will help your doctor diagnose your condition and initiate treatment.

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Partial List of Allergens Tested By Our LAB:

Benzocaine 5% pet Ethyleneurea, meIamine formaldehyde 5% pet
2-Mercaptobenzothiazole 1% pet 2-tert-butvl-4-methoxyphenol 2% pet
Colophony 20% pet Goldsodiumthiosulfate 0.5% pet
4-paraphenylenediamine 1% pet Ethyl acrylate 0.1% pet
Imidazolidinylurea 2% pet Glyceryl thioglycolatete 1% pet
Cinnamic aldehyde 1% pet Tosylsulfonamideformaldehyde resin 10% pet
Amerchol L 101 50% pet Methyl methacrylate 2% pet
Carba Mix 3% pet Cobalt chloride hexahydrate 1% pet
Neomycin sulfate 20% pet Tixocortal-21-pivolate 1% pet
Thiuram Mix 1% pet Budesonide 0.1% pet
Disperse Red 171% pet Chloroxylenol 0.5% pet
Ethylenediamine dihydrocloride 1% pet Triethanoamine 2% pet
Epoxy resin 1% pet Cetyl/stearyl alcohol 5% pet
Quarternium-15 2% pet Tea tree oil 5% pet
4-tert-butylphenoIformaIdehyde resin 1% pet Disperse Blue 124 1% pet
Mercapto mix 1% pet Disperse Yellow 1 % pet
N-isopropyl-N-phenyl-4-phenyl 0.1% pet Benzyl salicylate 2% pet
Potassium dichromate 0.25% pet 4-Aminoazobenzene .25% pet
Balsam of Peru 25% Isoeugenol 2% pet
Nickelsulfate hexahydrate 2.5% pet Eugenol 2% pet
2.5-Diazolidinylurea 1% pet DMDM hydantoin 1% pet
Tocopherol pet Ylang vlang oil 2% pet
Bacitracin 20% pet Benzyl alcohol 1% pet
DiphenyIthiourea 1% pet Isopropyl myristate 20% pet
Disperse Orange 1% pet Triclosan 2% pet
Parabens mix 12% pet Diphenylguanidine 1% pet
Euxyl K400 2.5% pet Polysorbate 5% pet
Fragrance mix 8% pets Dibutylthiourea 1 %
Glutaraldehyde 0.5% pet I 2-N-octyl-4-isothiazolin 0.1% pet
2-bromo-2-nitropropane 0.5% pet I 2-N-octyl-4-isothiazolin 0.1% pet
Sesguiterpenelactone mix 0.1% pet Benzalkonium chloride 0.1% aq
Thimerisal 0.1% pet Cocamidopropyl betaine 1% aq
Disperse Red 1% pet Formaldehyde 1% aq
2hydroxy-4-methoxybenzophenone 3% pet Kathon CC 0.1% aq
2-chloro-3,5-xylenol 1% pet Proplyene glycol 30% aq
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