Which statement best explains drugs like methylphenidate help a ...

[natalie2426]

Which statement best explains drugs like methylphenidate help a patient with attention-deficit hyperactivity disorder (ADHD)?
 
  1. Neurotransmitters are blocked, limiting the effects they can produce within the PNS.
  2. Activation of certain areas of the brain causes increased attention and ability to focus.
  3. Neurotransmitter levels are reduced, which produces a calming effect within the CNS.
  4. Certain areas of the brain are deactivated, resulting in a calming effect.

Question 2

The nurse works in a summer camp for children. One of the children says she was bitten by several wasps. The nurse plans to inject the child with epinephrine (EpiPen) if which symptoms are present?
 
  1. The child's skin feels cold and clammy.
  2. The child is thirsty.
  3. The child's skin feels warm and dry.
  4. The child is restless and confused.
  5. The child is hyperactive and hyperverbal.

[lkanara2]

Answer to Question 1

2
Rationale 1: Neurotransmitters such as epinephrine and serotonin are released, not blocked.
Rationale 2: At first, it might seem confusing to use a CNS stimulant to treat a hyperactivity disorder. However, CNS stimulants activate the reticular activating system, causing higher levels of attention and ability to focus.
Rationale 3: Neurotransmitters such as epinephrine and serotonin are released, not reduced.
Rationale 4: Areas of the brain are not deactivated.
Global Rationale: At first, it might seem confusing to use a CNS stimulant to treat a hyperactivity disorder. However, CNS stimulants activate the reticular activating system, causing higher levels of attention and ability to focus. Neurotransmitters such as epinephrine and serotonin are released, not blocked or reduced. Areas of the brain are not deactivated.

Answer to Question 2

1,2,4
Rationale 1: The skin may feel cold and clammy in shock.
Rationale 2: Thirst is a common complaint in shock.
Rationale 3: In shock the skin is not warm and dry.
Rationale 4: General symptoms of shock include behavioral changes such as restlessness, anxiety, confusion, depression, and apathy.
Rationale 5: In shock, the patient will not be hyperactive or hyperverbal.
Global Rationale: General symptoms of shock include behavioral changes such as restlessness, anxiety, confusion, depression, and apathy. Thirst is a common complaint in shock. The skin may feel cold and clammy in shock. In shock, the skin is cold and clammy, not warm and dry. In shock, the patient will not be hyperactive or hyperverbal.

[natalie2426]

TYSM

[abro1885]

Gracias!