Provide advice on how to accomplish the following goal. Give ONLY the advice, no other words or explanation.
For example:

Answer: <advice, as short as possible; a single sentence!>.

Goal: How do you determine whether a capacitor is blowout?
Look at the top of the capacitor. If the top is flat, the capacitor is still good. If the top is bulged out, the capacitor is broken and needs to be changed.
Measure its impedance. If it's significantly lower than expected, the capacitor may be blown.