According to the American Heart Association, healthcare providers should not attempt to alter glucose concentration within a specific range because of the increased risk of hypoglycemia. What is the suggested range?

Correct Answer: B

Rationale: The correct answer is B (80-110 mg/dL) because this range reflects the optimal blood glucose level to minimize the risk of hypoglycemia and hyperglycemia. A (60-90 mg/dL) is too low and can lead to hypoglycemia. C (186-202 mg/dL) and D (110-160 mg/dL) are higher ranges that can increase the risk of hyperglycemia and related complications. The American Heart Association recommends the 80-110 mg/dL range for healthcare providers to maintain glucose levels within a safe and effective range.

Correct Answer: C

Rationale: The correct answer is C: Class 2. In Class 2 hemorrhage, systolic blood pressure starts to decrease. This is because in Class 2 hemorrhage, there is approximately 15-30% blood volume loss, which leads to a decrease in blood pressure. Class 0, 1, and 3 hemorrhages do not involve significant blood loss to cause a decrease in systolic blood pressure. Class 0 represents minimal blood loss, Class 1 involves up to 15% blood volume loss, and Class 3 involves more than 30% blood volume loss, all of which are not significant enough to lead to a decrease in systolic blood pressure.

Correct Answer: C

Rationale: Rationale: C is incorrect because pulse oximetry provides a spot-check measurement, not continuous. A is true as room light can interfere. B is true as dysfunctional hemoglobin can affect accuracy. D is true as pulse oximetry relies on differential light absorption. Therefore, the correct answer is C.

Correct Answer: A

Rationale: The correct answer is A: "Requires surgical intervention" because cardiac tamponade is a life-threatening condition where fluid accumulates in the pericardial sac, compressing the heart. Surgical intervention, such as pericardial drainage or pericardiectomy, is necessary to relieve the pressure on the heart. Needle pericardiocentesis (choice B) is a temporary measure and may not definitively manage the condition. Discovering Beck's triad (choice C) in the Emergency Department (ED) may raise suspicion but is not always present in all cases. Kussmaul breathing (choice D) is associated with conditions like diabetic ketoacidosis, not specifically with cardiac tamponade.

Correct Answer: D

Rationale: The correct answer is D, "Decreased pulse pressure," because it is not a typical sign or symptom of airway compromise. Airway compromise usually presents with changes in voice (A), stridor (B), and tachypnea (C) due to obstruction or narrowing of the airway. Decreased pulse pressure is more indicative of cardiovascular issues rather than airway compromise. In summary, choices A, B, and C are related to airway compromise symptoms, while choice D is not directly associated with it.