A nurse explains that endorphins are capable of reducing pain:

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. .

There are three types of sleep apnea: obstructive, central, and mixed complex. Obstructive apnea is the most common type. It is caused by the relaxation of the soft tissues, which allows partial to total obstruction of the airway. (True or False) = The correct answer is True.

Choice A rationale:

True. Obstructive sleep apnea is indeed the most common type. It occurs when the soft tissues in the throat and the muscles of the upper airway relax too much during sleep, leading to a partial or complete blockage of the airway. This obstruction results in the characteristic pauses in breathing that are a hallmark of obstructive sleep apnea.

Choice B rationale:

False. Obstructive sleep apnea is not caused by the need for hypnotics or sleep-inducing medications. It is a physiological condition related to airway obstruction during sleep and not a result of poor sleep hygiene or a lack of medication.

Choice C rationale:

False. While it's true that older adults may have changes in their sleep patterns, this doesn't mean they require 10 hours of sleep a day to prevent fatigue. Sleep needs can vary among individuals, and older adults often experience more fragmented sleep and may nap during the day, but the requirement for 10 hours of sleep a day is not a general rule.

Choice D rationale:

False. Older adults may nap more during the day due to changes in their sleep patterns, but it doesn't necessarily mean they need to nap less to sleep better at night. The sleep-wake cycle of older adults may be different from younger individuals, and it's not always necessary for them to reduce daytime napping to improve nighttime sleep.