Correct Answer: B

Rationale: The correct first action for the nurse to take when receiving a report of a client's blood pressure reading of 160/95 is to recheck the blood pressure. Rechecking the blood pressure ensures the accuracy of the reading before making any further decisions or interventions. Notifying the provider (Choice A) can be considered after confirming the blood pressure reading. Administering antihypertensive medication (Choice C) should not be done based solely on one reading without verification. Documenting the blood pressure in the chart (Choice D) should also come after confirming the accuracy of the reading to avoid recording incorrect information.

Correct Answer: B

Rationale: The correct answer is B: 'Avoid smoking and open flames near oxygen.' This information is crucial to prevent fire hazards when using home oxygen therapy. Smoking and open flames near oxygen can lead to serious accidents. Choice A is incorrect because increasing the oxygen flow rate during activity without healthcare provider guidance can be dangerous. Choice C is incorrect as oxygen tanks should be stored in a well-ventilated area, not necessarily warm and dry. Choice D is incorrect as oxygen should not be turned off and on by the client, as it can affect the therapy's effectiveness and cause safety issues.

Correct Answer: C

Rationale: The correct answer is C. If sterile solution splashes onto the sterile field, it is considered contaminated. Changing gloves in this situation ensures that the sterility of the dressing change is maintained. Choice A is incorrect as non-sterile gloves would introduce contaminants. Choice B is incorrect as layering gloves can increase the risk of contamination. Choice D is incorrect as covering the sterile field with a sterile drape is not the appropriate action to take in response to contamination.

Correct Answer: C

Rationale: The correct first action for the nurse in this scenario is to recheck the blood pressure. This step is crucial to confirm the accuracy of the initial reading. Administering antihypertensive medication without verifying the blood pressure could lead to inappropriate treatment. Notifying the healthcare provider can be done after ensuring the accuracy of the reading. Simply documenting the blood pressure without validation may result in acting on potentially incorrect information. Therefore, the priority is to recheck the blood pressure.

Correct Answer: C

Rationale: The correct instruction for a client using a metered-dose inhaler (MDI) is to hold the inhaler 1-2 inches from the mouth. This distance allows for the proper delivery of the medication into the lungs. Choice A is incorrect because the duration of inhalation can vary depending on the medication, and 1 second may not be adequate. Choice B is incorrect as shaking the inhaler vigorously is not necessary for all MDIs and can lead to inaccurate dosing. Choice D is incorrect as the client should hold their breath for about 10 seconds after inhalation to allow the medication to deposit in the lungs.