Bmi computation

Correct Answer: B

Rationale: The correct answer is B (Weight and height) because BMI (Body Mass Index) is calculated using weight and height measurements. The formula for BMI is weight (in kilograms) divided by height squared (in meters). This calculation gives an indication of a person's overall body fat and helps assess the risk of health problems related to weight. Choice A (Height and bp) is incorrect because blood pressure (bp) is not used in calculating BMI. Choice C (Face and vital signs) is also incorrect as these factors are not relevant to determining BMI. Choice D is incomplete. In summary, weight and height are the key components needed to compute BMI accurately.

Correct Answer: B

Rationale: The correct answer is B, Prevention of bedsores. Maintaining skin integrity is crucial to prevent pressure ulcers (bedsores). Pressure ulcers develop when there is prolonged pressure on the skin, leading to tissue damage. Preventing bedsores involves frequent repositioning, using supportive surfaces, and keeping the skin clean and dry. Avoiding infection (choice A) is important but is just one aspect of maintaining skin integrity. Choice C and D are incomplete, making them incorrect options. In summary, preventing bedsores directly aligns with the primary goal of maintaining skin integrity by ensuring the skin remains healthy and intact.

Correct Answer: B

Rationale: The correct answer is B: Knock. Before entering a patient's room, it is crucial to knock to respect the patient's privacy and give them a chance to prepare for your entry. This action demonstrates courtesy, professionalism, and consideration for the patient's personal space. It also helps prevent any potential embarrassment or discomfort for the patient. Choice A (Greet) should come after knocking to establish communication. Choice C (Twist the knob) is incorrect as it is a physical action that should be done after knocking to open the door. Choice D is incomplete.

Correct Answer: B

Rationale: Surface temperature gets cold when the surrounding gets cold because heat naturally flows from warmer areas to cooler areas until thermal equilibrium is reached. When the surrounding temperature decreases, it causes the heat to transfer away from the surface, leading to a decrease in surface temperature. This process follows the fundamental principle of heat transfer known as the second law of thermodynamics. The other choices are incorrect because they do not align with the basic principles of heat transfer and thermodynamics. Choice A, stating that surface temperature gets cold when the environment gets hot, goes against the natural flow of heat. Choice C and D are incomplete and do not provide any logical explanation.

Correct Answer: A

Rationale: The correct answer is A: Diarrhea. Rectal temperature should not be taken when a patient has diarrhea because it can lead to inaccurate readings due to rapid fluctuation in body temperature caused by fluid loss. Diarrhea can impair the body's ability to regulate temperature, resulting in unreliable readings. This can potentially lead to incorrect diagnosis and treatment decisions. Therefore, it is crucial to avoid taking rectal temperature in patients with diarrhea to ensure accurate assessment of their temperature status.