In sequential order, arrange the steps involved in obtain a patient's temperature using a digital thermometer

All number are correct

1. Place a new sheath over the probe of the digital thermometer

2. When the display indicates "Ready", gently place the tip of the thermometer under the patient's tongue

3. Ask the patient to close his or her lips over the thermometer and refrain from talking

4. Leave the thermometer in place until the beep is heard