Pharmacology and the Nursing Process 9th Edition Test Bank

Correct Answer: C

Rationale: The correct answer is C: 3.8 mL. To calculate the volume needed, first determine the concentration of the solution after reconstitution: 2.4 million units / 5,000,000 units = 0.48. Next, divide the desired dose by the concentration: 2.4 million units / 0.48 = 5 mL. Since the instructions state to dilute with 8 mL of sterile water, the total volume will be 13 mL. To find the volume of the powder to draw up, subtract the water volume from the total volume: 13 mL - 8 mL = 5 mL. Therefore, the nurse should draw up 5 mL of the reconstituted solution, which is equivalent to 3.8 mL of powder for injection. Incorrect choices: A, B, and D are incorrect because they do not consider the dilution factor of adding sterile water to the powder for injection. Option A is less than the

Correct Answer: C

Rationale: The correct answer is C: Hypomagnesemia. 1. Hypertension and cardiac dysrhythmias can be exacerbated by low magnesium levels. 2. Magnesium plays a crucial role in maintaining normal heart rhythm and blood pressure. 3. Hypomagnesemia can lead to cardiac arrhythmias and worsen hypertension. 4. Metabolic acidosis (A) is not directly related to hypertension and dysrhythmias. 5. Hypernatremia (B) and hypercalcemia (D) are less likely to be associated with cardiac issues in this context. In summary, checking for hypomagnesemia is essential due to its direct impact on the client's hypertension and cardiac dysrhythmias.

Correct Answer: C

Rationale: The correct answer is C because it encourages the patient to provide more detailed information about the cause of their pain, which can help in understanding the underlying health issues. Choice A is judgmental and may make the patient defensive. Choice B is closed-ended and does not prompt for specific details. Choice D is directive and may not be well-received by the patient. Asking the patient to elaborate on what caused their pain allows for a more open-ended response, leading to a more thorough health history assessment.

Correct Answer: A

Rationale: Step 1: Assess the client's vital signs to confirm presence of fever. Step 2: Measure client's oral temperature to obtain accurate reading. Step 3: Document temperature and report findings to healthcare provider. Step 4: Initiate appropriate interventions based on temperature reading. Step 5: Reassess client's condition to evaluate effectiveness of interventions. Summary: Option A is correct as it directly addresses the cue of fever by confirming the temperature. Options B, C, and D are incorrect as they do not directly address the need to assess the client's temperature for accurate evaluation and intervention.

Correct Answer: C

Rationale: The correct answer is C: Assess apical heart before administering digitalis. This is important because digitalis can slow down the heart rate, so it is crucial to monitor the client's heart rate before giving the medication to prevent further decrease in cardiac output. Encouraging activities that engage the Valsalva maneuver (A) is contraindicated in clients with congestive heart failure as it can lead to increased intra-thoracic pressure and decreased venous return, worsening cardiac output. Encouraging the client to perform exercises (B) may also increase cardiac workload and exacerbate symptoms. Offering small frequent feedings (D) is generally beneficial for clients with congestive heart failure to prevent overeating and promote easier digestion, but it does not directly address the decreased cardiac output concern in this scenario.