It is important to note, however, that ECGs record the electrical currents generated by cardiac muscle indirectly. They measure the electrical activity present in body fluids from the cardiac impulse that reaches the body surface. What other aspect of this method should one remember when analyzing ECGs?
a. Leads can detect separate potentials from ventricular depolarization and atrial repolarization.
b. Orientation of the electrodes on the body surface can affect the output in an ECG.
c. It follows the activity of a single action potential in a single cell at a single point in time.
Active TB is very dangerous but thankfully, it is treatable with medications.
Your question isn't too clear so I will be general with what active TB is and it's symptoms.
First off, TB is highly contagious, as it is spread through particles from our mouth, nose. Before active TB begins, the virus is latent without our body, or dormant, meaning that it's not active but it's sitting in your body waiting to become active.
TB is usually restrictive to the lungs and causes severe coughing and most times it's presented with coughing up blood in the more advanced process of the disease.
TB typically presents, also with night sweats, decreased in appetite, high fever, lethargy and chest pain due to the severity to coughing causing costochondritis.