Amy Foster will run both sprints at this weekend's European Team Championship meeting in Izmir after Ailis McSweeney was ruled out.
Foster was scheduled to compete in only the 200m but Ailis McSweeney has pulled out because of an Achilles injury.
North Belfast's Stephen Scullion is a late inclusion in the 5000m.
Ciara Mageean goes in the 1500m after two good early-season runs while other Northerners in action include Jason Smyth (100m and 4x100m).
The presence of Derval O'Rourke (100H), David Gillick (400m), Paul Hession (200m), Roseanne Galligan (800m), Mary Cullen (3000m), Ciaran O'Lionaird (3000m), Stephanie Reilly (steeplechase), Fionnuala Britton (5000m), Deirdre Ryan and Tori Pena (pole vault) should also ensure that the Irish are able to maintain their position in the First league.
Ireland finished eighth in last year's event - which is now a combined men's and women's competition - and the availability of so many major championship regulars should ensure that the Irish avoid relegation.
Britton and Reilly should be full of confidence after achieving 3000m steeplechase World Championship and Olympic Games qualifying marks last weekend in New York.
Smyth also competed in that Diamond League meeting but like all the sprinters and jumpers in the Big Apple, suffered because of the wet and windy conditions.
However with temperatures of around 30 degrees forecast for the Turkish city this weekend, Smyth should have another opportunity to achieve the World and Olympic standard of 10.18.
Smyth has already lowered his Northern Ireland record to 10.22 this season - a .10secs improvement on his time from 2010.
The Derryman's main rival in Saturday's 100m should be Norwegian Jaysuma Saidy Ndure who has a personal best of 10.00 and has run 10.06 this season.
In terms of other Ulster athletes in action, Letterkenny man Darren McBrearty goes in the 800m with another Donegal athlete Mary McLoone in action in both the long and triple jump and Alan Kennedy in the triple jump.
Foster will be joined by McSweeney, Brady, Whelan and Derval O'Rourke in the 4x100m relay squad while Ballymena & Antrim's Jo Patterson is part of the 4x400m squad..
The Irish will be up against the hosts, Belgium, Croatia, Finland, Greece, Hungary, the Netherlands, Norway, Romania, Slovenia and Switzerland in Izmir.
The top three will earn promotion with Greece, Norway and Finland for a quick return upwards after suffering relegation 12 months ago.