Mario has burn injury. After Forty48 hours, the physician orders for Mario 2 liters of IV fluid to be administered q12 h. The drop factor of the tubing is 10 gtt/ml. The nurse should set the flow to provide:

Correct Answer: B

Rationale: The correct answer is B (28 gtt/min). To calculate the flow rate in drops per minute (gtt/min), we use the formula: Flow rate (gtt/min) = Volume to be infused (ml) x Drop factor / Time (minutes). In this case, Mario needs 2 liters of IV fluid over 48 hours, which is 2000 ml over 2880 minutes. Using the given drop factor of 10 gtt/ml, we have: 2000 ml x 10 gtt/ml / 2880 min = 20,000 gtt / 2880 min = 6.94 gtt/min. To administer the 2 liters of fluid over 48 hours q12 h, we divide 6.94 gtt/min by 2 (since it's given q12 h) to get 3.47 gtt/min. Rounding up gives us 4 gtt/min for each 12-hour interval. Therefore

Correct Answer: B

Rationale: The correct answer is B because a urine output of 20 ml/hour indicates potential hypovolemia or inadequate perfusion, which can lead to poor tissue perfusion and compromised healing in burn patients. This finding suggests a need for intervention to optimize fluid balance and prevent complications. A: A PaO2 value of 80 mm Hg can be within normal limits and does not specifically indicate a problem related to burns. C: White pulmonary secretions may suggest pulmonary infection but may not directly relate to the burns. D: A rectal temperature of 100.6°F (38°C) is slightly elevated and may be a normal response to the body's inflammatory process after burns, not necessarily indicating a problem.

Correct Answer: C

Rationale: The correct answer is C: 95 mm Hg. Mean Arterial Pressure (MAP) is calculated using the formula MAP = ((2 x diastolic) + systolic) / 3. Plugging in the values from the blood pressure measurement (diastolic 80, systolic 126), we get MAP = ((2 x 80) + 126) / 3 = (160 + 126) / 3 = 286 / 3 = 95 mm Hg. This calculation provides an accurate representation of the average pressure in the arteries during one cardiac cycle. The other choices are incorrect because they do not align with the correct formula or calculation for determining MAP.

Correct Answer: C

Rationale: The correct answer is C: Decreases inflammation. Colchicine is used in the treatment of gout because it inhibits the inflammatory response that occurs during gout flare-ups. It works by disrupting the inflammatory process, particularly by inhibiting the migration of neutrophils to the affected area. This reduces the inflammation, pain, and swelling associated with gout attacks. Explanation of other choices: A: Replaces estrogen - This is incorrect because colchicine does not have any role in replacing estrogen in the body. B: Decreases infection - This is incorrect because colchicine does not have any direct effect on fighting infections. D: Decreases bone demineralization - This is incorrect because colchicine is not used to treat bone-related conditions such as osteoporosis.

Correct Answer: D

Rationale: Rationale: Performing capillary glucose testing every 4 hours is crucial preoperatively for a transsphenoidal hypophysectomy because the surgery can cause alterations in glucose levels due to stress response and potential pituitary dysfunction. Monitoring glucose levels helps prevent complications like hypoglycemia or hyperglycemia. Testing for ketones in the urine (A) is not specific to glucose levels. Testing urine specific gravity (B) is not as relevant for monitoring glucose levels. Checking temperature every 4 hours (C) is important but not directly related to potential complications from the surgery.