High Potassium found in Urine + Blood Test (Sister)

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Hey guys! My sister took a 24 hours urine test and a blood test and was worried about the results. She is struggling with low iron in general that is starting to improve from supplementation. She recently took a urine test and got high potassium but she said she "drank a lot of lemon water" that day. 🤦‍♀️🤦‍♂️

What do you guys think?  

[undeather]

Blood potassium looks perfectly normal, propably a diet thing (isn't she vegan?)
Increased potassium intake -> increased excretion. 

Also, this forum is not the right place to as such particular questions. 
If she is worried, she should contact her doctor, which will propably tell her the same. 
Her kidneys and everything else looks fine.

Edited January 27 by undeather