EMS Communications Flashcards

Which FCC-designated frequency band is most commonly used for EMS simplex operations in the United States?

Answer: VHF high band (150–174 MHz)

VHF high band (150–174 MHz) is the most widely used frequency range for simplex EMS communications in the US.

When transmitting a patient report to the receiving hospital, the paramedic should identify themselves by which of the following first?

Answer: Unit identifier and level of care

The unit identifier and level of care (ALS/BLS) are announced first so the hospital can route the call to the appropriate personnel.

A paramedic uses a repeater system. What is the primary advantage of this configuration?

Answer: Extends the communication range beyond line-of-sight limitations

Repeaters receive a signal on one frequency and retransmit it on another at higher power, extending range beyond line-of-sight limits.

Which term describes the condition where two units transmit simultaneously on the same frequency, making both transmissions unreadable?

Answer: Doubling

Doubling (also called 'walking on each other') occurs when two units transmit at the same time, causing mutual interference.

Under HIPAA regulations, a paramedic transmitting a patient report over the radio should:

Answer: Avoid using the patient's name whenever possible

Radio transmissions are not fully secure, so paramedics should avoid using the patient's name and minimize protected health information.

The standard phonetic alphabet letter for 'M' is:

Answer: Mike

In the NATO phonetic alphabet used in EMS communications, 'M' is represented by 'Mike.'

A paramedic is unable to reach medical direction by radio in a rural area. The next best option is:

Answer: Use a cellular phone to contact medical control

Cellular phones are an acceptable backup communication method when radio contact with medical direction cannot be established.