If tachycardias can be induced during the EP study, then by studying the electrical signals recorded from the electrode catheters, the precise cause of the tachycardia can usually be identified. Once this is accomplished, the appropriate therapy for the tachycardia usually becomes clear.
A dilute acid is one that is not very concentrated. You can make an acid solution more dilute by adding water. Note that you have to be careful with the terms strong and weak; very strong acids can also be very dilute.
Humic acid is the. dark-colored organic matter which is only soluble in alkali. Humin is the soil organic. matter fraction that is insoluble in alkali and remains after extraction of the humic and. fulvic acids with dilute alkali.