Fitz Hall should be fit in time for QPR's home clash with Coventry on Saturday.
The centre-half missed last weekend's defeat at Doncaster after picking up a back injury against Sheffield Wednesday prior to the international break.
But he got 65 minutes under his belt as Rangers' reserves went down 5-3 against his former club Crystal Palace.
Peter Ramage, Damion Stewart, Gary Borrowdale, Hogan Ephraim, Patrick Agyemang and Alessandro Pellicori were also involved to keep up their match fitness, and the latter was on target twice.
"The game provided a number of first-team players the opportunity to get vital match minutes under their belts," said reserves boss Keith Ryan.
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