Sensitivity is the ability of a screening test to accurately identify what aspect of the screening?

Correct Answer: B

Rationale: The correct answer is B: Persons who have the disease. Sensitivity measures how well a test correctly identifies individuals who have the disease (true positives). It is essential in determining the test's ability to detect the presence of the disease accurately. Choices A, C, and D are incorrect because sensitivity focuses on correctly identifying individuals who have the disease, not those with symptoms, those without the disease, or those with a diagnosis of the disease.

Correct Answer: A

Rationale: The correct answer is A: Initiate non-invasive positive pressure ventilation (NIPPV). This intervention is prioritized as it helps improve oxygenation and ventilation in COPD exacerbation without the need for invasive mechanical ventilation, reducing the risk of ventilator-associated complications. NIPPV also decreases the work of breathing and can prevent the need for intubation. Administering bronchodilator medications (B) is important in COPD exacerbation but may not address the immediate need for ventilatory support. Endotracheal intubation (C) should be reserved for cases of respiratory failure not responding to NIPPV. Chest physiotherapy (D) may be beneficial in some cases but is not the first-line intervention for managing acute COPD exacerbation.

Correct Answer: A

Rationale: The correct answer is A: Enhances the delivery of quality nursing care. Supervision and delegation are essential in ensuring efficient and effective healthcare delivery. By supervising and delegating tasks appropriately, the head nurse can ensure that staff members are performing their duties competently, which ultimately leads to improved quality of patient care. Supervision helps in monitoring staff performance, providing feedback, and offering guidance when needed. Delegation ensures that tasks are allocated to the right staff members based on their skills and abilities, optimizing the workflow. Choices B, C, and D are incorrect because they do not directly relate to the primary purpose of supervision and delegation, which is to enhance the quality of nursing care through effective oversight and task allocation.

Correct Answer: D

Rationale: The correct answer is D: Transporting the patient to a medical facility for antivenom administration. This is recommended because antivenom is the definitive treatment for snakebites. Tourniquets (choice A) can worsen tissue damage and should be avoided. Elevating the limb (choice B) may not prevent venom spread. Making an incision (choice C) can lead to infection and increased venom absorption. Antivenom administration at a medical facility is crucial for proper management of snakebites.

Correct Answer: C

Rationale: Step 1: Incongruent message occurs when verbal and nonverbal communication do not align. Step 2: Choice C states "When what the nurse says and does do not agree," indicating a lack of alignment. Step 3: This inconsistency can lead to confusion or mistrust in communication. Step 4: Choices A, B, and D all describe situations with alignment between words and actions, making them congruent. Summary: Choice C is correct as it exemplifies incongruent communication, while Choices A, B, and D are incorrect as they describe congruent messages.

Correct Answer: B

Rationale: The correct answer is B: Persons who have the disease. Sensitivity measures how well a test correctly identifies individuals who have the disease (true positives). It is essential in determining the test's ability to detect the presence of the disease accurately. Choices A, C, and D are incorrect because sensitivity focuses on correctly identifying individuals who have the disease, not those with symptoms, those without the disease, or those with a diagnosis of the disease.

Correct Answer: B

Rationale: One potential maternal condition that may contribute to abnormal labor progression with slow cervical dilation despite regular contractions is pelvic outlet obstruction. This can occur if the maternal pelvis is too small, misshapen, or has an obstruction such as a fibroid tumor. The inadequate space in the pelvis can prevent the fetus from descending properly and can result in a prolonged or difficult labor. If suspected, interventions such as a cesarean delivery may be necessary to prevent complications for both the mother and baby. It is essential for the nurse to assess for signs of pelvic outlet obstruction and work with the healthcare team to address any issues promptly to ensure a safe delivery.

Correct Answer: D

Rationale: The correct answer is D because an ethical dilemma arises when there is a conflict between two or more ethical principles, leading to a difficult decision-making situation for Nurse Mauve. This involves weighing the benefits and consequences of each ethical principle to determine the best course of action. Choice A is incorrect as time pressure does not define an ethical dilemma. Choice B is incorrect because ethical dilemmas involve conflicting choices, not unclear ones. Choice C is incorrect as the conflict in an ethical dilemma is not necessarily with a superior but can be internal or with other stakeholders.

Correct Answer: C

Rationale: The correct answer is C: cope with anxiety. The nurse's goal is to address Belle's difficulty tolerating frustration, which likely leads to anxiety. By helping Belle develop coping strategies for managing her anxiety, the nurse can assist her in handling frustration more effectively. Options A, B, and D are incorrect because increasing self-esteem, recognizing needs, and mobilizing resources may be important aspects of Belle's overall care but are not directly related to addressing her difficulty with frustration and anxiety. Focusing on coping with anxiety directly targets the root issue and is the most appropriate goal in this context.