A healthcare professional is reviewing the laboratory values for a client who has a positive Chvostek's sign. Which of the following laboratory findings should the healthcare professional expect?

Correct Answer: A

Rationale: A positive Chvostek's sign is a clinical indication of low calcium levels, known as hypocalcemia. This sign is elicited by tapping the facial nerve anterior to the ear, resulting in facial muscle twitching. The correct laboratory finding associated with a positive Chvostek's sign is decreased calcium. Elevated potassium (Choice B) is not typically associated with Chvostek's sign but can be seen in conditions like renal failure. Increased sodium (Choice C) is not directly related to Chvostek's sign and is more commonly associated with hypernatremia. Low hemoglobin (Choice D) is not the expected laboratory finding in a client with a positive Chvostek's sign; instead, it suggests anemia, which is unrelated to this clinical manifestation.

Correct Answer: B

Rationale: The correct answer is to use electrical tape to secure extension cords next to baseboards on the floor. This practice helps prevent tripping and electrical hazards by keeping cords out of the way. Option A is incorrect as unplugging electronics should be done by holding the plug, not the cord itself. Option C is incorrect because when using a fire extinguisher, it should be aimed at the base of the flames, not at the top. Option D is not directly related to home safety teaching and may not be necessary for all clients, as it suggests an unnecessary change that may not improve safety.

Correct Answer: A

Rationale: The correct answer is A: 'Keep a nightlight on in the bathroom.' This safety measure is crucial for older adults to prevent falls by enhancing visibility during nighttime bathroom visits. Choice B is incorrect because setting the room temperature to 68 degrees Fahrenheit may not be universally suitable for all older adults, as individual preferences vary. Choice C is incorrect as placing throw rugs over electrical cords poses a tripping hazard rather than enhancing safety. Choice D is incorrect as using chairs without armrests may not provide adequate support and stability for older adults, increasing the risk of falls.

Correct Answer: D

Rationale: The correct answer is D. Sealing the lips around the mouthpiece is crucial for the proper use of an incentive spirometer as it helps ensure effective delivery of the inhaled medication. Choice A has been corrected to reflect the importance of sealing the lips. Choices B and C are incorrect because using the spirometer as needed throughout the day and inhaling slowly and deeply, although beneficial, do not directly address the essential technique of sealing the lips around the mouthpiece.

Correct Answer: B

Rationale: Positioning the client with the affected side down following irrigation is crucial as it helps facilitate drainage of the dislodged cerumen and any remaining irrigation solution. This position allows gravity to assist in the removal of the loosened debris. Wearing sterile gloves is a standard precaution in healthcare procedures to prevent infection but is not specific to ear irrigation. Using body-temperature water or a solution at a slightly warmer temperature is recommended to prevent vertigo and discomfort, so using cool fluid is incorrect. Pulling the pinna upward and backward, not downward, straightens the ear canal for adults to facilitate the irrigation process, making choice D incorrect.