ATI-AMS ATI Adult medical surgical Exam - Set 1 - Part 3

Correct Answer: Metabolic alkalosis

Prolonged vomiting causes loss of gastric acid and a resulting accumulation of bicarbonate, producing metabolic alkalosis. Treatment targets the underlying cause with antiemetics and careful replacement of the lost fluids and electrolytes. Option a is incorrect because metabolic acidosis develops from a low bicarbonate, as seen with diarrhea or ketoacidosis. Vomiting instead removes acid and raises the bicarbonate level, so it drives the imbalance in the opposite, alkalotic direction. Option b is incorrect because respiratory acidosis arises from hypoventilation and retained carbon dioxide, a lung problem. Vomiting alters bicarbonate through gastric acid loss, not carbon dioxide, so this respiratory disorder does not apply. Option c is incorrect because respiratory alkalosis comes from hyperventilation that lowers carbon dioxide through the lungs. Because the imbalance from vomiting involves bicarbonate rather than breathing, this carbon-dioxide-driven disorder does not fit the scenari

Correct Answer: Metabolic acidosis

Aspirin overdose ultimately produces metabolic acidosis with a low pH and a low bicarbonate level. The rapid, deep respirations the client shows represent the body attempting to compensate by exhaling more carbon dioxide. Option a is incorrect because metabolic alkalosis involves a high bicarbonate from causes like vomiting or antacids. Salicylate toxicity drives bicarbonate down, so the alkalotic state is the reverse of what this client develops. Option b is incorrect because respiratory acidosis reflects retained carbon dioxide from hypoventilation, yet this client is breathing rapidly and deeply. That fast breathing lowers carbon dioxide as compensation, which contradicts a carbon-dioxide-retaining disorder. Option d is incorrect because uncompensated fluid excess is a volume problem, not the acid-base disturbance the question targets. Aspirin overdose disrupts hydrogen ion balance and produces metabolic acidosis rather than a fluid imbalance.

Correct Answer: The client responds to verbal stimuli

During moderate sedation the client responds to verbal stimuli, retains the gag reflex, and maintains a patent airway. A dedicated ACLS-certified nurse monitors the client continuously throughout the procedure. Option b is incorrect because loss of the gag reflex is not expected with moderate sedation, which preserves protective reflexes. A diminished gag reflex would indicate deeper sedation than this level, where airway protection remains intact. Option c is incorrect because inability to maintain an airway describes general anesthesia rather than moderate sedation. Under moderate sedation the client keeps a patent airway, so airway loss would signal a different, deeper level. Option d is incorrect because complete unresponsiveness reflects general anesthesia, not moderate sedation. The whole point of moderate sedation is that the client still responds to verbal stimuli, which an unresponsive client would not.

Correct Answer: Flumazenil

Flumazenil reverses benzodiazepines such as midazolam, so the nurse anticipates giving it when the client reacts adversely to the sedative. This reversal agent counteracts the benzodiazepine's effects and helps restore the client's stability. Option a is incorrect because naloxone reverses opioids, not benzodiazepines. Because midazolam is a benzodiazepine rather than an opioid, naloxone would not counteract its effects in this client and is the wrong reversal agent. Option b is incorrect because atropine treats bradycardia by increasing heart rate and does not reverse benzodiazepine sedation. It addresses a slow pulse, so it would not resolve a reaction caused specifically by midazolam. Option c is incorrect because dantrolene is the drug for malignant hyperthermia, an entirely different emergency. It does nothing to reverse a benzodiazepine, so it has no role in managing this client's reaction to midazolam.

Correct Answer: Administering IV dantrolene and stopping surgery

For malignant hyperthermia the team administers IV dantrolene, terminates the surgery, gives high-flow oxygen, and cools the client with iced fluids and a cooling blanket to halt the crisis. Option a is incorrect because continuing the surgery allows this life-threatening reaction to keep worsening. The correct response is to terminate the procedure immediately, so proceeding while merely observing the client would place that client in serious danger. Option c is incorrect because withholding oxygen is dangerous because the client needs high-flow oxygen during this crisis. Waiting for the temperature to climb ignores that an extremely high temperature is a late sign, not a trigger to act. Option d is incorrect because warming blankets would raise body temperature and intensify the hyperthermia. Management calls for cooling with iced fluids and a cooling blanket, so adding warmth directly opposes the needed treatment.

Correct Answer: Provide airway support

A systemic toxic reaction to a regional block causes central nervous system depression, so the nurse provides airway support to protect breathing while the toxic effects are managed. Option a is incorrect because monitoring creatinine assesses kidney function and does nothing for the immediate respiratory threat of CNS depression. The toxic reaction endangers the airway, which this lab check fails to address. Option b is incorrect because right-side positioning is not the indicated response to anesthetic toxicity. The priority is supporting the airway against depressed breathing, so a specific side-lying position does not meet the urgent need. Option d is incorrect because giving a diuretic targets fluid removal, which is unrelated to a systemic anesthetic reaction. It would not counter the central nervous system depression that requires airway protection in this client.

Correct Answer: Witnessing the client's signature on the consent

The nurse witnesses the client's signature, verifies understanding and competence, and clarifies information. The provider, not the nurse, obtains consent and explains the procedure, risks, benefits, and alternatives. Option a is incorrect because explaining the surgical risks and benefits is the provider's responsibility, not the nurse's. The nurse may reinforce understanding but cannot supply this new information that the provider must deliver when obtaining consent. Option c is incorrect because describing alternatives to the procedure also belongs to the provider during the consent discussion. The nurse's role is limited to witnessing and clarifying, so presenting treatment options exceeds that scope. Option d is incorrect because obtaining the consent itself is a provider function. The nurse only witnesses the signature and confirms the client understands, so actually securing the consent falls outside the nurse's authority.

Correct Answer: An elevated white blood cell count

An elevated white blood cell count suggests infection and should be reported before surgery. Other abnormal results such as a high creatinine or high glucose also warrant notifying the provider preoperatively. Option a is incorrect because a potassium level within the expected range is normal and needs no report. The nurse alerts the provider only to abnormal preoperative findings, so a value in range does not require notification. Option b is incorrect because a sodium level within the expected range reflects normal status and is not a concern. Reporting focuses on values signaling infection or organ impairment, which a normal sodium does not represent. Option d is incorrect because a hematocrit within the expected range indicates no immediate preoperative problem. Because it is normal, it does not meet the criteria for the abnormal results that should prompt notifying the provider.

Correct Answer: Notify the surgeon

An elevated temperature before a laparotomy suggests a possible infection and may lead to cancellation, so the nurse notifies the surgeon rather than proceeding with the planned procedure on a potentially unstable client. Option b is incorrect because transferring the client to the operating room proceeds with surgery despite a sign of possible infection. The fever must be reported first, since it could prompt postponing the procedure the surgeon decides about. Option c is incorrect because applying ice packs treats the temperature without addressing why it is elevated. This action skips notifying the surgeon, who must evaluate the fever as a potential reason to cancel surgery. Option d is incorrect because encouraging fluids does not resolve the underlying concern and would be inappropriate when the client is likely NPO before surgery. The fever itself requires the surgeon's attention, not increased intake.

Correct Answer: Place the client in a lateral position

For an unresponsive PACU client the nurse first places them in a lateral, side-lying position because aspiration is the greatest risk. This position lets secretions drain and protects the airway. Option a is incorrect because semi-Fowler's is appropriate once the client is responsive, not while unresponsive. Until the client can protect the airway, side-lying guards against aspiration better than sitting them up in this position. Option b is incorrect because placing pillows under the knees is avoided after surgery because it impairs venous return. It also fails to address the aspiration risk that makes positioning the unresponsive client on the side the priority. Option c is incorrect because lying flat with legs elevated is used for hypotension, not routine airway protection. For an unresponsive client the immediate concern is aspiration, which the lateral position addresses more directly than leg elevation.