the doctor examines the patient by using ...

Jawaban : Stethoscope

Stethoscope (listen to your heart)
Otoscope (looks in nose and ears)
Ophthalmoscope (looks in eyes)
Sphygmomanometer (blood pressure cuff)
Thermometer (takes the temperature)
Tongue depressor (hold down tongue to see the throat)
Reflex hammer (taps your knee)