A nurse is assessing the status of a patient who is sleeping.
Which assessment data indicate that the patient is most likely in stage 3 of non-rapid eye movement (NREM) sleep?

Choice A rationale:

Placing electrodes on all four extremities is not the initial step in using a Transcutaneous Electrical Nerve Stimulator (TENS) unit. It may not be necessary for the specific pain management needs of the patient and can be uncomfortable or impractical.

Choice B rationale:

This is the correct initial step when starting TENS treatment. The nurse should adjust the settings to a level below the threshold at which the patient feels a tingling sensation. This ensures that the treatment is comfortable and safe for the patient. The goal is to provide pain relief, not to induce discomfort.

Choice C rationale:

Turning the unit on before attaching it to the patient is not advisable. It's essential to connect the electrodes to the patient first and then turn on the TENS unit. This sequence helps prevent accidental electrical stimulation before the device is properly set up.

Choice D rationale:

Applying conductive jelly to uncoated electrodes is a step in preparing the electrodes for use, but it should be done after attaching the electrodes to the patient's skin. This choice does not address the initial step in TENS treatment, which is setting the stimulation level. .

Choice A rationale:

NREM (Non-Rapid Eye Movement) sleep is characterized by slow-wave sleep and is often considered restorative. It is the stage of sleep where the body repairs and regenerates tissues, and it is essential for feeling rested and rejuvenated. NREM sleep consists of three stages, with stages 3 and 4 being the deepest and most restful, also known as slow-wave sleep. These stages are essential for physical recovery.

Choice B rationale:

NREM sleep is not characterized by irregular respirations. Irregular breathing patterns are more commonly associated with certain sleep disorders, such as sleep apnea, rather than NREM sleep itself.

Choice C rationale:

NREM sleep is not characterized by increased heart rate. In fact, during NREM sleep, the body typically experiences a decrease in heart rate and blood pressure. The body's physiological functions tend to slow down during NREM sleep to promote rest and recovery.

Choice D rationale:

NREM sleep is not characterized by daytime activity. In contrast, NREM sleep occurs during the night and is a state of deep rest, during which the body is not engaged in daytime activities. It is essential for physical and mental recovery, especially after a day of activity.