Correct answer: b) Count the remaining tablets of oxycodone with another nurse.

Rationale: Counting the remaining tablets of oxycodone with another nurse is a standard procedure to prevent the diversion of controlled substances and ensure accountability. The nurse should also document the administration and disposal of any controlled substances on a separate record.

Incorrect choices:

a) Document the administration of oxycodone on a separate record.: This is correct but not the best answer as it does not prevent the diversion of controlled substances by itself.

c) Dispose of any unused portions of oxycodone in a sharps container.: This is incorrect as unused portions of oxycodone should be disposed of in a designated container for controlled substances, not in a sharps container.

d) Educate the client about the potential for addiction and dependence.: This is correct but not relevant to the question as it does not prevent diversion of controlled substances by the nurse.

Correct answer: b) Flumazenil

Rationale: Flumazenil is an antidote for benzodiazepine overdose as it reverses its sedative effects by blocking its action on the GABA receptors.

Incorrect choices:

a) Naloxone: This is an antidote for opioid overdose as it displaces opioids from their receptors and restores respiration.

c) Acetylcysteine: This is an antidote for acetaminophen overdose as it replenishes glutathione and prevents liver damage.

d) Atropine: This is an antidote for organophosphate poisoning as it blocks the effects of acetylcholine and relieves bronchoconstriction and bradycardia.

Correct answer: d) Scan their own identification badge.

Rationale: Scanning their own identification badge is a required step when obtaining any medication from the automated dispensing system, especially for controlled substances, as it ensures accountability and security.

Incorrect choices:

a) Enter the client's name and date of birth.: This is not a required step when obtaining medication from the automated dispensing system, but it is a required step when administering medication to the client to verify their identity.

b) Scan the barcode on the medication label.: This is not a required step when obtaining medication from the automated dispensing system, but it is a required step when administering medication to the client to verify its accuracy.

c) Enter the prescriber's name and license number.: This is not a required step when obtaining medication from the automated dispensing system, but it may be required when documenting medication administration in some facilities.

Correct answer: a) Assess the client's vital signs and level of consciousness.

Rationale: According to the priority-setting framework, the nurse should first address the client's physiological needs before addressing their psychological or social needs. Therefore, the nurse should first assess the client's vital signs and level of consciousness, which can be altered by withdrawal symptoms, and intervene accordingly.

Incorrect choices:

b) Administer the prescribed medication for withdrawal symptoms.: This is an important action but not the first one as the nurse should first assess the client's condition and determine if they need any immediate interventions.

c) Provide a calm and supportive environment for the client.: This is an important action but not the first one as it addresses the client's psychological needs, which are lower in priority than their physiological needs.

d) Refer the client to a substance abuse counselor or program.: This is an important action but not the first one as it addresses the client's social needs, which are lower in priority than their physiological or psychological needs.

Correct answer: b) The client has a history of hypertension and angina.

Rationale: Hypertension and angina are contraindications for methylphenidate, which is a stimulant that can increase blood pressure and heart rate and cause cardiac complications.

Incorrect choices:

a) The client has a diagnosis of attention deficit hyperactivity disorder (ADHD).: This is an indication for methylphenidate, which is used to treat ADHD by increasing attention and focus.

c) The client has a positive urine drug screen for cannabis.: This is not a contraindication for methylphenidate, but it indicates that the client may have a substance use disorder and may need further assessment and intervention.

d) The client has a family history of bipolar disorder.: This is not a contraindication for methylphenidate, but it indicates that the client may be at risk for developing bipolar disorder and may need close monitoring for mood changes.

Correct answer: d) "Methadone will block the effects of opioids if I relapse."

Rationale: Methadone is an opioid agonist that blocks the effects of opioids by occupying their receptors and preventing them from binding. This reduces the risk of overdose and relapse by eliminating the reward or pleasure of using opioids.

Incorrect choices:

a) "Methadone will help me stop craving opioids.": This is incorrect as methadone does not eliminate cravings for opioids, but it reduces them by preventing withdrawal symptoms.

b) "Methadone will make me feel euphoric like opioids do.": This is incorrect as methadone does not produce euphoria or sedation like opioids do, but it maintains a steady state of opioid tolerance and dependence.

c) "Methadone will cause me to have withdrawal symptoms when I stop taking it.": This is incorrect as methadone prevents withdrawal symptoms by providing a long-acting opioid substitute. However, methadone itself can cause dependence and withdrawal if discontinued abruptly, so it should be tapered off gradually under medical supervision.