Correct Answer: D

Rationale: Step 1: Hypernatremia is defined by elevated serum sodium levels (>145mEq/L). Step 2: Serum osmolality of 245mOsm/kg is high, consistent with hypernatremia. Step 3: Urine specific gravity below 1.003 indicates dilute urine, a common finding in hypernatremia. Step 4: The combination of elevated serum sodium, high serum osmolality, and low urine specific gravity confirms hypernatremia. Summary: A: Incorrect, as high serum osmolality (not 245mOsm/kg) is associated with hypernatremia. B: Incorrect, as low urine specific gravity (not below 1.003) is seen in hypernatremia. C: Incorrect, as serum sodium needs to be >145mEq/L to indicate hypernatremia.

Correct Answer: B

Rationale: The correct answer is B because it encourages the patient to reflect on the potential causes of their fatigue, leading to a more detailed and insightful response. This open-ended question allows the patient to explore various factors contributing to their fatigue, such as lifestyle habits, medical conditions, or emotional stressors. Choice A focuses on stress, which may not be the primary cause of fatigue for the patient. Choice C is too specific and may not uncover other relevant information. Choice D assumes that sleep duration is the sole factor contributing to fatigue, neglecting other possible causes. Overall, choice B facilitates a more comprehensive discussion and helps the nurse gather valuable information to address the patient's concerns effectively.

Correct Answer: C

Rationale: The correct answer is C, Excessive fluid volume. In Addison's disease, there is a deficiency of cortisol and aldosterone leading to sodium loss and water retention. This imbalance can result in excessive fluid volume. A) Risk for infection is not directly related to Addison's disease. B) Urinary retention is not a common symptom of Addison's disease. D) Hypothermia is not a typical manifestation of Addison's disease.

Correct Answer: A

Rationale: The correct answer is A: Assessment. In this scenario, the nurse failed to complete a thorough assessment by not informing the nurse about the patient's condition. Assessment is the first step in the nursing process where data is collected and analyzed to identify the patient's problems. By not communicating the patient's symptoms to the nurse, the nurse missed crucial information that could have led to timely intervention. Explanation of other choices: B: Diagnosis - The nurse did not have the opportunity to make a diagnosis because the assessment phase was incomplete. C: Implementation - The nurse did not reach the implementation phase yet as the assessment phase was not properly conducted. D: Evaluation - The nurse cannot evaluate the effectiveness of interventions as the assessment and subsequent phases were not properly carried out.

Correct Answer: D

Rationale: The correct answer is D: Turn off the antibiotic. This should be the nurse's first action because in an anaphylactic reaction, stopping the administration of the causative agent is crucial to prevent further harm. Continuing the antibiotic (Choice B) can worsen the reaction. Calling the doctor (Choice A) may cause a delay in the immediate intervention needed. Calling for help (Choice C) is important but turning off the antibiotic takes precedence to stop the allergen.