Correct Answer: B

Rationale: Cyanosis, a bluish discoloration of the skin, indicates inadequate oxygenation and requires immediate intervention. It suggests a severe lack of oxygen in the blood, which can be life-threatening. Pallor and jaundice are concerning findings but may not indicate an immediate life-threatening situation. Pallor can be a sign of anemia or low blood pressure, while jaundice may indicate liver dysfunction. Erythema, which is redness of the skin, is typically not an emergency and can be caused by various factors such as inflammation or increased blood flow to the area.

Correct Answer: D

Rationale: The inner forearm is the most appropriate site for administering a tuberculin skin test. This test requires an intradermal injection, which is administered just below the surface of the skin. The inner forearm provides a flat, easily accessible surface for this type of injection. Choices A, B, and C are incorrect because the tuberculin skin test should not be administered into a muscle (deltoid muscle or vastus lateralis muscle) or into the abdomen. The test requires precise placement within the dermal layer of the skin on the inner forearm to accurately assess for a reaction.

Correct Answer: A

Rationale: The correct action to take first when observing blue fingers in a client with wrist restraints is to loosen the right wrist restraint. Blue fingers indicate compromised circulation, and loosening the restraint can help restore blood flow to the area. Applying a pulse oximeter (Choice B) or palpating the right radial pulse (Choice D) may be necessary following the loosening of the restraint to assess the client's oxygen saturation and pulse. Comparing hand color bilaterally (Choice C) is important but not the immediate action needed when a circulation issue is noted in one hand.

Correct Answer: C

Rationale: Assessing the client's health risks is the priority as it provides essential information to guide subsequent care. By understanding the client's health risks, the nurse can tailor health education and interventions, such as immunizations and lifestyle modifications, to address specific needs. Providing information about immunization against meningitis (Choice A) is important but should come after assessing health risks. Instructing the client to have a TB skin test every 2 years (Choice B) is relevant but not the initial step in care. Teaching about exercise recommendations (Choice D) is also essential but should follow the assessment of health risks.

Correct Answer: B

Rationale: Unplugging the pump is the correct initial action in this situation to prevent any potential fire hazards. Sparks when plugging in the IV pump indicate an electrical issue that can lead to a fire. By immediately unplugging the pump, the healthcare professional ensures the safety of the client and prevents any further risks. Labeling the pump with a defective equipment sticker (Choice A) is not the priority as the immediate concern is safety. Obtaining a replacement pump (Choice C) can be considered after addressing the safety issue. Notifying the maintenance department (Choice D) is important but should follow the immediate action of unplugging the pump to mitigate the risk.