Correct Answer: C

Rationale: An elevated creatinine level indicates impaired kidney function, which may affect the client's ability to undergo surgery. The other laboratory values (white blood cell count, potassium level, and hemoglobin level) are within normal ranges and do not directly impact the client's readiness for surgery.

Correct Answer: B

Rationale: Myxedema is characterized by a decreased metabolic rate, leading to manifestations such as decreased temperature. Therefore, the correct assessment finding expected with myxedema is a decreased temperature. Choices A, C, and D are incorrect because myxedema typically presents with a decreased pulse rate, not an increased pulse rate, absence of fine tremors (which are more common in hyperthyroidism), and weight gain rather than weight loss.

Correct Answer: A

Rationale: The correct answer is A: 'Monitor INR levels and check for bleeding.' When a patient is receiving anticoagulant therapy, nurses must monitor the patient's INR levels to ensure that the anticoagulants are within the therapeutic range and also watch for signs of bleeding, which is a common side effect of anticoagulants. Option B is incorrect because while patient education is important, dietary restrictions are not a direct nursing consideration when administering anticoagulant therapy. Option C is not a specific nursing consideration related to anticoagulant therapy. Option D is incorrect as keeping the patient immobile is not a standard nursing practice for patients on anticoagulant therapy, as mobility is often encouraged to prevent complications like deep vein thrombosis.

Correct Answer: A

Rationale: Low birth weight increases a child's vulnerability to physical maltreatment due to additional care needs. Advanced maternal age (choice B) is not directly linked to an increased risk of physical maltreatment. Single parenthood (choice C) is not a characteristic that inherently increases the risk of physical maltreatment. Premature birth (choice D) is not listed as a characteristic that directly increases a child's risk of physical maltreatment.

Correct Answer: B

Rationale: The axillary method is the most appropriate for newborns because it is non-invasive and safe. Rectal temperature measurement can be uncomfortable and poses a risk of injury, especially in newborns. Oral temperature measurement is not recommended for newborns due to their inability to cooperate and potential inaccuracies. Tympanic temperature measurement may not be as accurate in newborns compared to older children or adults.