The statistics worsen when rescues are made by bystanders. If lifeguards or paramedics are unable to be called, bystanders must rescue the drowning person. Alternatively, there are small floating robots that can reach the victim, as human rescue carries a risk for the rescuer, who could be drowned. Death of the would-be rescuer can happen because of the water conditions, the instinctive drowning response of the victim, the physical effort, and other problems. After reaching the victim, first contact made by the rescuer is important. A drowning person in distress is likely to cling to the rescuer in an attempt to stay above the water surface, which could submerge the rescuer in the process. To avoid this, it is recommended that the rescuer approaches the panicking person with a buoyant object or extending a hand, so the victim has something to grasp. It can even be appropriate to approach from behind, taking one of the victims arms, and pressing it against the victims back to restrict unnecessary movement. Communication is also important. If the victim clings to the rescuer, and the rescuer cannot control the situation, a possibility is to dive underwater (as drowning people tend to move in the opposite direction, seeking the water surface) and consider a different approach to help the drowning victim. It is possible that the victim has already sunk beneath the water surface. If this has happened, the rescue requires caution, as the victim could be conscious and cling to the rescuer underwater.
Perinephritis is an infection of the surroundings of the kidney either right or left. It can be the result of extravasated infiltration of the bacteria out of the renal pelvis (pyelonephritis) or a result of another kidney infection. The consequences include the infection of the neighbouring organs (for example transverse colon) or retroperitoneum, and/or hypertension. Perirenal abscess also may occur. == References ==