Correct Answer: B

Rationale: The patient's presentation with renal failure, confusion, seizures, asterixis, and a sweet odor to the breath, along with laboratory findings of severe metabolic acidosis, hyperkalemia, and elevated BUN and creatinine levels, is consistent with uremic encephalopathy. Uremic encephalopathy is a neurological complication of acute or chronic renal failure resulting from the buildup of uremic toxins in the blood, leading to various neurological symptoms such as confusion and seizures. The sweet odor to the breath can be attributed to the presence of urea, a waste product that accumulates in renal failure. Other metabolic abnormalities like hyperkalemia and severe metabolic acidosis are also common in renal failure. It is crucial to promptly recognize and manage uremic encephalopathy to prevent further neurological complications.

Correct Answer: C

Rationale: A simple hysterectomy involves the removal of the uterus and cervix. It does not involve the removal of the fallopian tubes or ovaries. In some cases, the fallopian tubes may be removed along with the uterus, but this would be specified as a different type of hysterectomy (such as a total hysterectomy or a radical hysterectomy). The removal of the ovaries, if necessary, would be indicated as an oophorectomy.

Correct Answer: D

Rationale: Demerol (meperidine hydrochloride) is an opioid analgesic commonly used as a preoperative medication to decrease intra-operative anesthetic requirements and provide analgesia. Opioids like Demerol act on the central nervous system to reduce pain sensations, making it an effective choice for preoperative pain management. This can help decrease the amount of anesthesia needed during surgery, leading to better pain control and overall patient comfort during and after the procedure. Celebrex, acetaminophen, and ibuprofen are also used for pain management, but they do not have the same potency and mechanism of action as opioids like Demerol for reducing intra-operative anesthetic requirements.

Correct Answer: C

Rationale: When a patient expresses concern about a medication looking different from what they had taken before, it is crucial for the nurse to verify the original prescription to ensure that the correct medication is being administered. Checking the original medication prescription will help the nurse confirm if there have been any changes or errors in the medication orders. This step is essential for patient safety and to prevent any potential medication errors. It is important to prioritize patient safety and well-being in such situations, and verifying the prescription is the appropriate action to take in this case.

Correct Answer: B

Rationale: Teaching the patient diaphragmatic breathing exercises for respiratory support would be the most appropriate intervention to address the symptoms of dyspnea and anxiety in this scenario. Diaphragmatic breathing, also known as belly breathing, focuses on engaging the diaphragm for deep, slow breaths, which can help improve lung expansion and ventilation. This technique can help the patient manage their breathing difficulty and reduce anxiety by promoting relaxation and improving oxygen exchange in the lungs. It empowers the patient with a coping strategy they can use independently to alleviate distressing symptoms at any time. Administering oxygen therapy may be beneficial, but the priority is to teach the patient a technique they can use proactively and routinely. Prescribing benzodiazepines should be considered as an adjunct if non-pharmacological interventions are ineffective in managing anxiety. Referring to a pulmonologist may be necessary for comprehensive evaluation and treatment but may not directly address the immediate symptoms of dyspnea and anxiety.