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The instrument used by a doctor to listen to the sounds of the heart and lungs is called?
A. Stethoscope
B. Thermometer
C. Microscope
D. Barometer
Correct Answer Is Option = Stethoscope
Notes / Explanation
The instrument used by a doctor to listen to the sounds of the heart and lungs is called a stethoscope, and it is one of the most familiar and widely used tools in the field of medicine. The stethoscope is a simple but extremely valuable instrument that allows a doctor to listen carefully to the sounds produced inside the body, particularly the sounds of the beating heart and the movement of air in and out of the lungs. The instrument consists of a small disc-shaped piece that is placed against the body of the patient, connected by tubes to two earpieces that the doctor places in the ears. When the disc is pressed against the chest or back of the patient, it picks up the faint sounds coming from within the body and channels them through the tubes to the doctor's ears, making these sounds clear enough to be heard and studied. By listening to the sounds of the heart, a doctor can judge whether the heart is beating at a normal rate and rhythm and whether there are any unusual sounds that might indicate a problem with the way the heart is working. By listening to the lungs as the patient breathes, the doctor can detect whether the air is moving normally and whether there are any abnormal sounds that might suggest an infection, a blockage or another condition affecting the breathing. The stethoscope is therefore an essential aid in the examination of patients, helping doctors to detect and diagnose a wide range of conditions affecting the heart, the lungs and other parts of the body. It is also used to listen to other internal sounds, such as those of the digestive system, and to help in measuring blood pressure. The invention of the stethoscope was an important advance in medicine, because before it existed, doctors had to place their ears directly against the body of the patient to listen to internal sounds, which was awkward and often not very effective. The stethoscope made it possible to listen to these sounds more clearly, more conveniently and more accurately, and it remains a symbol of the medical profession to this day. For PPSC and other competitive examinations, the key points to remember are that the stethoscope is the instrument used to listen to the internal sounds of the body, particularly the heart and the lungs, that it helps doctors to detect and diagnose conditions affecting these organs, and that its invention was an important advance in medical examination.
