Below is an instruction from Human. Write a response.
    ### Instruction:
    How to diagnose Hypokalemic periodic paralysis ?
    ### Response:
    How is hypokalemic periodic paralysis diagnosed? The diagnosis of hypokalemic periodic paralysis is based on a history of episodes of paralysis and low levels of potassium in the blood during attacks (less than 0.9 to 3.0 mmol/L), but not between attacks. An important part of the diagnosis is to rule out other potential causes, including myotonia, hyperthyroidism, and arrhythmia.
    