Final answer:
A specific stain called PAS can differentiate McArdle's disease from Primary Carnitine Deficiency.
Step-by-step explanation:
In the case of McArdle's disease, a specific stain called PAS (Periodic acid-Schiff) stain can be used to differentiate it from Primary Carnitine Deficiency. McArdle's disease is a glycogen storage disorder, and PAS stain can highlight the presence of abnormal glycogen accumulation in muscle tissue. This stain appears reddish-purple when applied, indicating the presence of abnormal glycogen.
On the other hand, Primary Carnitine Deficiency does not show any specific staining patterns that differentiate it from other conditions. Additional tests, such as genetic testing or biochemical analysis, are required to confirm the diagnosis.
In summary, the PAS stain can be used to differentiate McArdle's disease from Primary Carnitine Deficiency by highlighting the abnormal glycogen accumulation in muscle tissue.
Learn more about Differentiating stains for McArdle's disease and Primary Carnitine Deficiency