While caring for a four-year-old female patient who was severely burned in a house fire, how would you determine the extent of this child's burns?

Correct Answer: A

Rationale: The correct answer is A: By using the Lund and Browder chart. The Lund and Browder chart is specifically designed to assess the extent of burns in children accurately, taking into account the variation in body proportions as children grow. This method provides a more precise estimation of the total body surface area affected by burns in pediatric patients. Choices B, C, and D are incorrect. The Rule of Nines is more suitable for adults, not children. The Rule of Tens is not a standard method for assessing burn extent, and the Parkland Formula is used to calculate fluid resuscitation requirements in burn patients, not to determine the extent of burns.

Correct Answer: C

Rationale: The correct answer is C: Biofeedback. Biofeedback is a nonpharmacological technique that uses electronic monitoring equipment to provide real-time data on physiological processes such as heart rate, muscle tension, and skin temperature. Through this feedback, patients learn to control and regulate these bodily functions voluntarily. Choice A, Meditation, involves focusing the mind and reducing stress through techniques like mindfulness or deep breathing, but it does not specifically rely on electronic monitoring equipment. Choice B, Visualization, is a technique where individuals imagine peaceful scenes to promote relaxation and reduce anxiety, and it also does not involve electronic monitoring. Choice D, Chiropractic, is a healthcare profession that focuses on the diagnosis and treatment of musculoskeletal disorders through manual adjustments and manipulation, which is unrelated to the use of electronic monitoring equipment for controlling bodily functions.

Correct Answer: C

Rationale: The correct answer is C: Kidney dialysis. A blood potassium level of 9.2 mEq/L indicates severe hyperkalemia, which can be life-threatening. Kidney dialysis is the most appropriate intervention to rapidly lower potassium levels in this situation. Choice A, intravenous potassium supplementation, would worsen the hyperkalemia. Choice B, intravenous calcium supplementation, is not the primary intervention for hyperkalemia. Choice D, parenteral nutrition, is unrelated to treating hyperkalemia and would not address the immediate concern.

Correct Answer: C

Rationale: To calculate the drops per minute, first convert the ordered amount to drops per minute. 20 cc per hour equals 20 drops per hour with 60 cc per drop tubing, which is equivalent to 20 drops per hour * 60 cc per drop = 1200 drops per hour. To find drops per minute, divide 1200 by 60 (minutes in an hour), which equals 20 drops per minute. Therefore, the correct answer is 20 drops per minute. Choices A, B, and D are incorrect as they do not reflect the correct calculation based on the provided information.

Correct Answer: A

Rationale: The correct answer is A: "The use of oral contraceptives." Risk factors for deep vein thrombosis include factors such as immobility, surgery, cancer, obesity, smoking, and the use of oral contraceptives. Choices B, C, and D are incorrect because blood type and Rh factor do not play a role in the development of deep vein thrombosis, and being underweight is not typically considered a risk factor for this condition.