Correct Answer: B

Rationale: The correct answer is to instruct the client not to get out of bed. Lorazepam is a sedative that can cause drowsiness and impair coordination. By instructing the client not to get out of bed, the nurse helps prevent falls or injuries that could occur due to the medication's sedative effects. Choice A is incorrect as keeping the client awake may not be necessary and could lead to unnecessary discomfort. Choice C is incorrect as encouraging the client to drink fluids is not directly related to the administration of lorazepam. Choice D is incorrect as early ambulation is not safe immediately after administering a sedative medication.

Correct Answer: C

Rationale: Instructing the client to avoid the Valsalva maneuver is crucial after rhinoplasty to reduce strain and the risk of bleeding. Administering humidified oxygen may not be directly related to postoperative care for rhinoplasty. Restricting fluids is not typically necessary unless specifically indicated by the healthcare provider. Applying heat packs to the nose is contraindicated after rhinoplasty as it can increase the risk of bleeding and should be avoided.

Correct Answer: A

Rationale: When administering IV antibiotics, it is essential for the nurse to verify the antibiotic dosage and check for any allergies the patient may have. This is crucial to ensure that the correct medication is being given at the proper dose and to prevent potential adverse reactions. Choice B is incorrect because administering medication without verification can lead to errors. Choice C is incorrect as it goes against safe medication administration practices. Choice D is incorrect as the focus should be on checking if the patient has allergies to antibiotics, not ensuring the patient is allergic to them.

Correct Answer: D

Rationale: A pulmonary embolism can manifest with sudden shortness of breath, chest pain, and coughing up blood. These symptoms are classic presentations of a pulmonary embolism due to the blockage of blood flow to the lungs. Therefore, the correct answer is 'All of the above.' Each symptom alone can be seen in various other conditions, but when occurring together, they strongly suggest a pulmonary embolism. Sudden shortness of breath is due to decreased oxygenation, chest pain can result from the strain on the heart, and coughing with blood may indicate damage to the lung tissue. Choosing any single symptom would not encompass the full range of presentations seen in a pulmonary embolism.

Correct Answer: B

Rationale: The correct first step in managing a client with delirium is to identify any reversible causes of delirium. This is crucial because addressing the underlying cause can help in resolving delirium more effectively. Administering sedative or antipsychotic medications without addressing the root cause may not be helpful and can even worsen the condition. Limiting environmental stimulation, although important, is not the primary step in managing delirium.