Your hospital - Intensive care

Question 1

How do doctors keep an incubator the correct temprature?

Answer 1

The use a thermistor.

Question 2

What happens if the temprature increase and there is a thermistor?

Answer 2

The resistance decreases.

Question 3

If the temprature falls the voltage across the resistance ________. This could ahve a sensing circuit to switch on a heater.

Answer 3

increases.

Question 4

To keep track of a patients heart beat and oxygen levels the doctors put a sensor on the patients finger emitting visible light and infrared radiation.Blood with more oxygen will absorb the infrared radiation _________. This will monitor their oxygen levels.

Answer 4

better.

Question 5

What si a ventilator?

Answer 5

It is an electricalmotor that moves a piston up and down to pump air in to the patients lungs to keep them alive.

Question 6

What is a defibrillator?

Answer 6

Uses stored charge to produce a large potentail difference. They use this to start somebodies heart when it has stoppred beating.

Question 7

What is a pacemaker?

Answer 7

It keeps a patients heart beating. It applies potentiall differnce at regular intervals to the heart and muscles.