1.   As with the devices used by police officers, a person breathes into a tube or vent, and a breath alcohol reading appears on an LCD screen.

2.   When she fitted a metal cuff around her arm, her blood-pressure reading appeared on a small screen on the console.

3.   But it stabilised in April and the May reading appears to suggest the upward trend has been broken.

4.   But it stabilised in April and the May reading appears to suggest the upward trend may have been broken.