Correct Answer: A

Rationale: The correct answer is A: 'Keep the feet close together.' When lifting a heavy object such as a bedside cabinet, it is essential to maintain a wide base of support by keeping the feet close together. This provides better stability and reduces the risk of injury. Choice B is incorrect because using the back muscles for lifting can lead to back strain and injury; it is recommended to use the legs instead. Choice C is incorrect as standing close to the cabinet may cause the nurse to lose balance and strain the back. Choice D is incorrect because bending at the waist increases the risk of back injury. Therefore, the safest and most appropriate action is to keep the feet close together to ensure stability and prevent self-injury.

Correct Answer: D

Rationale: The statement 'Ethical principles can serve as the foundation for laws' is correct. Ethical principles act as a standard for evaluating actions and behaviors. While ethical principles may influence the creation of laws, they are not laws themselves. Choice A is incorrect as ethics are usually upheld through societal norms and personal values rather than government enforcement. Choice B is incorrect because laws do provide standards, but those standards are legal rather than ethical. Choice C is incorrect as ethics are broad guidelines for behavior, not highly detailed rules.

Correct Answer: B

Rationale: When performing a physical assessment, it is essential to palpate the client's abdomen before auscultating bowel sounds. This sequence helps prevent altering bowel sound results due to the pressure applied during palpation. Choice A is incorrect because the FLACC pain rating scale is typically used for nonverbal or pediatric clients, not adults. Choice C is incorrect because the bladder of the blood pressure cuff should surround about 80% of the client's arm circumference, not the bladder of the cuff itself. Choice D is incorrect because to obtain an apical heart rate, auscultation should be done at the fifth intercostal space at the midclavicular line, not at the third intercostal space to the left of the sternum.

Correct Answer: A

Rationale: The correct answer is A: 'Keep the feet close together.' When lifting a heavy object such as a bedside cabinet, it is essential to maintain a wide base of support by keeping the feet close together. This provides better stability and reduces the risk of injury. Choice B is incorrect because using the back muscles for lifting can lead to back strain and injury; it is recommended to use the legs instead. Choice C is incorrect as standing close to the cabinet may cause the nurse to lose balance and strain the back. Choice D is incorrect because bending at the waist increases the risk of back injury. Therefore, the safest and most appropriate action is to keep the feet close together to ensure stability and prevent self-injury.

Correct Answer: C

Rationale: The correct answer is C: Network model. A network model of HMOs contracts with two or more IPAs. In a network model, the HMO contracts with multiple IPAs to provide healthcare services to its members, offering a wider range of choices and flexibility in selecting healthcare providers. Choices A, B, and D are incorrect because the staff model involves employing physicians and healthcare providers directly, the point of service model allows members to seek care both in-network and out-of-network, and the group model is not specifically associated with contracting IPAs.