Correct Answer: C

Rationale: Correct! When a patient is prescribed an oral anticoagulant, the nurse should monitor for signs of bleeding. Oral anticoagulants are medications that prevent blood clot formation but can increase the risk of bleeding. Monitoring for signs such as easy bruising, blood in urine or stool, and prolonged bleeding from minor cuts is essential. Choices A, B, and D are incorrect because oral anticoagulants do not typically affect blood glucose levels, blood pressure, or appetite.

Correct Answer: A

Rationale: The correct way to carry an infant with cerebral palsy experiencing muscle hypertonicity and scissoring of the legs is astride one of the mother's hips. This position helps keep the infant's legs apart, reducing muscle tightness. Strapping the infant in an infant seat, wrapping tightly in a blanket, or using the football hold under the arm does not address the specific needs related to muscle hypertonicity and scissoring of the legs in cerebral palsy.

Correct Answer: C

Rationale: Patients with a history of peptic ulcer disease should avoid nonsteroidal anti-inflammatory drugs (NSAIDs) because they can worsen peptic ulcers. NSAIDs inhibit the production of prostaglandins, which help protect the stomach lining. Acetaminophen (Choice A) is a safer alternative for pain relief in patients with peptic ulcers. Antacids (Choice B) can actually help in symptom relief by neutralizing stomach acid. Antihistamines (Choice D) are not known to worsen peptic ulcers and are generally safe for use in patients with this condition.

Correct Answer: B

Rationale: The correct answer is B: Planning. Planning in nursing care involves setting long-term and preventive goals for the patient in collaboration with the patient and their family. This step ensures that a comprehensive and individualized care plan is developed. Choice A, Evaluation, comes after the interventions have been implemented to assess their effectiveness. Choice C, Implementation, is the step where the care plan is put into action. Choice D, Assessment, is the initial step that involves collecting data to identify the patient's needs, which is done before planning the care.

Correct Answer: B

Rationale: The correct answer is B: Vitamin K. Warfarin works by inhibiting the action of vitamin K, which is crucial for the synthesis of clotting factors in the blood. By interfering with vitamin K, warfarin decreases the production of these clotting factors, thereby prolonging the time it takes for blood to clot. This is why individuals on warfarin therapy need to monitor their vitamin K intake. Choices A, C, and D are incorrect because warfarin does not directly interfere with platelets, calcium, or vitamin B12.