A nurse is providing discharge teaching for a client who has a new implantable cardioverter defibrillator (ICD). Which of the following client statements demonstrates understanding of the teaching?

• Cocaine is a powerfully addictive stimulant drug that increases the levels of dopamine in the brain, which is a chemical messenger related to movement, pleasure, and motivation.
• Cocaine's effects appear almost immediately and last for a few minutes to an hour, depending on the method of use. Some of the short-term effects of cocaine include extreme happiness and energy, mental alertness, hypersensitivity to sight, sound, and touch, and irritability.
• An elevated energy level is one of the most common and noticeable effects of cocaine use, as cocaine stimulates the central nervous system and makes the user feel more alert, active, and confident¹². This effect may also lead to increased physical activity, talkativeness, or aggression.

Therefore, option A is the correct answer, while options B, C, and D are incorrect.

Option B is incorrect because a powerful craving for more cocaine is not a behavior that can be observed by others, but rather an internal feeling that the user may experience due to the addictive nature of the drug.

Option C is incorrect because high self-esteem is not a typical effect of cocaine use, as cocaine may cause paranoia or anxiety in some users.

Option D is incorrect because euphoria is not a behavior that can be observed by others, but rather an emotional state that the user may feel due to the increased dopamine levels in the brain

A. Blood pressure: A normal blood pressure for an adolescent is 110/70 mm Hg. The question does not provide the adolescent's blood pressure, so it cannot be determined if it requires follow-up or not.
B. Capillary refill: A normal capillary refill time is less than 2 seconds. A prolonged capillary refill time indicates impaired blood flow to the extremity, which could be due to vascular injury, compartment syndrome, or shock.
C. Pedal pulse: A normal pedal pulse is +2 or +3. A weak pedal pulse (+1) indicates reduced blood flow to the extremity, which could be due to vascular injury, compartment syndrome, or shock.

D. Heart rate: A normal heart rate for an adolescent is 60 to 100 beats per minute. The question does not provide the adolescent's heart rate, so it cannot be determined if it requires follow-up or not.
E. Skin temperature: A normal skin temperature is warm and dry. A cool skin temperature indicates reduced blood flow to the extremity, which could be due to vascular injury, compartment syndrome, or shock.
F. Pain: A pain level of 10 on a scale of 0 to 10 indicates severe pain that needs to be managed with appropriate analgesics and nonpharmacological interventions.