A nurse is reinforcing teaching with a client about the use of transcutaneous electrical nerve stimulation (TENS) to manage chronic pain.
Which of the following statements by the client indicates the need for further teaching?

Choice A rationale:

Bradycardia, a slow heart rate, is not typically associated with acute pain. In response to pain, the body usually experiences increased heart rate (tachycardia) as part of the stress response.

Choice B rationale:

A decreased respiratory rate is not an expected finding in response to acute pain. Acute pain often leads to increased respiratory rate as the body attempts to manage the pain and stress.

Choice C rationale:

Hypoglycemia, a low blood sugar level, is not a typical physiological response to acute pain. Acute pain is more likely to induce a release of stress hormones, such as cortisol and adrenaline, which can lead to increased blood sugar levels.

Choice D rationale:

Hypertension, or elevated blood pressure, is an expected physiological response to acute pain. Pain activates the body's stress response, leading to increased sympathetic nervous system activity, which can cause vasoconstriction and increased blood pressure. This response helps prepare the body to cope with the pain and stress. Monitoring blood pressure in a client reporting acute pain is essential to assess the impact of pain and determine appropriate pain management strategies.

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. .