Doctors Backous, Anstead and Clinkscales are now seeing patients in the Seattle area at 515 Minor Ave, Suite 140, Seattle, WA 98104.

Located in Edmonds, our office offers advanced allergy testing and immunotherapy.

Accurately testing for allergies is the first step in identifying and ultimately eliminating allergies and their unwanted symptoms. At Puget Sound ENT, we pride ourselves on conducting precise allergy measurements that pinpoint the irritant(s) and help you plot out a treatment plan that fits your schedule and lifestyle. All allergy testing is performed in our office using skin testing; this type of allergy testing is considered the most reliable technique.

The most common testing is the prick test, in which the patient’s skin is pricked or scratched with a needle or multi-test device. Intradermal dilutional testing, formerly known as skin endpoint titration (SET) testing involves injecting an intradermal wheal, or bleb, directly under the top layer of skin. When both skin prick testing and intradermal testing are combined, the result is referred to as modified quantitative testing. We generally prefer this form of skin testing over blood work testing as it is more sensitive, accurate and affordable. The Puget Sound ENT specialists are highly skilled and experienced in allergy testing and treatments, helping you feel better fast.

We understand that allergies can be incredibly annoying, restricting everyday activities and limiting your quality of life. Our advanced allergy testing and treatment plans ensure you lead an allergy-free life year-round.

We take special care to address the allergy needs of children, making the testing process as comfortable and transparent as possible for both the parents and the child.
Puget Sound ENT staff and physicians treat every patient as an individual with the utmost kindness, compassion and respect.
Our MQT skin testing approach is rapid, reliable and more affordable than blood tests, and completed in the comfort of our office in Edmonds, WA.
The care team at Puget Sound ENT respects our patients’ time, taking a personal interest in their well-being. We strive for accessibility, working hard to set up appointments and procedures quickly and efficiently, often within the first week of contact!

“I have been a Puget Sound ENT patient for more than 15 years. Dr. Duncan Riddell has been my physician. I receive an allergy shot every two weeks to help with my bronchitis. I no longer get Bronchitis at a pace of three or more times each year. The reception and medical team are always friendly and helpful. It means a lot to know that I have a whole team of doctors available when needed. They all know me by name and I receive a warm welcome every time I go. As a 60+ year old woman, it is comforting to know that I have a whole team standing behind me. They shall be my team for as long as I am on this planet. They are a wonderful group of care providers!”

Cyndi Crull


What sets MQT allergy testing apart?

Advanced allergy testing, also known as MQT (Modified Quantitative Test), is currently the most advanced and precise way to test patients for allergies, determine their allergen sensitivities and relieve them of seasonal and year-round discomfort. At Puget Sound ENT, we test for environmental allergies.

How is MQT performed?

We begin with two rounds of simple, in-office testing. After an initial consultation, we’ll advise you to refrain from taking certain medications for a minimum time period before the test. On the day of the test, a prick test is completed, followed by a series of small injections, using very fine needles, in rows on your arms. Each reaction is measured and recorded carefully. The results are used to produce the serums required for allergy shots. This allergy treatment is found to alleviate the allergic symptoms by using diluted injections of allergens to build an immunity.

What are the side-effects of MQT?

The most common side effect of skin testing is slightly swollen, red, itchy bumps (wheals) much like a TB skin test. These wheals may be most noticeable during the test. In some people, an area of swelling, redness and itching may develop a few hours after the test and last for as long as a couple of days.

The best patient care is put into practice every day at Puget Sound ENT — we consider it a privilege to serve you.
Edmonds Center for Outpatient Surgery (ECOS)

7320 216th St SW

Suite 140

Edmonds, WA 98026

425-673-3750 Directions

76th Professional Commons
21911 76th Ave W
Suite 211
Edmonds, WA 98026

Fax: (425) 670-6718
Alt Fax: (425) 670-6719
1 (425) 775-6651 Directions
Mill Creek

Swedish Mill Creek Medical Center
13020 Meridian Ave S, 2nd Floor
Everett, WA 98208

Fax: (425) 670-6718
Alt Fax: (425) 670-6719
1 (425) 337-4810 Directions

Ear Nose Throat & Allergy Associates
104 27th Ave SE
Puyallup, WA 98374
*Dr. Backous only

1 (253) 770-9000 Directions
Minor & James (Center for Specialty Surgery)

First Hill Medical Building

515 Minor Ave (on the corner of Minor & James)

Suite 130

Seattle, WA 98104