Health care is a universally demanding field because of various illnesses which are categorized as communicable diseases. Communicable diseases are spreading at a rapid rate when people get in touch with each other. This exploration has created a design for venous needle displacement (VND), a type of linear displacement and smart Saline Level Monitoring technique during hemodialysis procedure to prevent blood loss. Monitoring the level of saline and displacement of the needle positioned is very important because the patient’s lives are saved, when suffering from kidney failure. This method will be helpful for other patients who undergo medications using venous catheter or needles during the treatment for kidney failure, undergoing hemodialysis. These patients need computerized monitoring of VND and saline level which is a tedious procedure. Saline Level Monitoring (SLM) and VND are computerized and developed as a smart phone application. The proposed method detects blood loss at an early stage from the arterio-venous fistula. This scheme will send the data corresponding to the saline level (SL) and also the position of fistula needle. Magnetic potentiometer (MagnetoPot), a type of non-contact type sensor, is used to measure the position of the fistula needle and stress sensor for determining the weight of saline bottles, in terms of equivalent electrical quantity. MagnetoPot is installed near the bedside of the patients undergoing hemodialysis. This position sensor will measure displacement of the fistula needle in comparison with the reference position. The patients during their deep sleep may shake the position of the needle due to body movements which tends to blood loss. Hence, to avoid this situation, the rotary potentiometer is used to measure the needle displacement which is a linear displacement (either left or right displacement) in terms of equivalent electrical signal (positive values of voltages for left displacement and negative values of voltages for right displacement).