Know PK deficiency

As you or someone you care about travel along your journey with PK deficiency, you may find this website helpful as an additional resource in learning more.

PK deficiency is a rare, inherited blood disorder caused by a lack of pyruvate kinase (PK), an enzyme responsible for helping red blood cells develop, function properly, and maintain normal lifespan.

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"There's a difference between being tired because you didn't get enough sleep,
and being so tired that you can't walk across the room."
- Kelsi

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