Correct Answer: A

Rationale: The correct answer is A: "The use of oral contraceptives." Risk factors for deep vein thrombosis include factors such as immobility, surgery, cancer, obesity, smoking, and the use of oral contraceptives. Choices B, C, and D are incorrect because blood type and Rh factor do not play a role in the development of deep vein thrombosis, and being underweight is not typically considered a risk factor for this condition.

Correct Answer: B

Rationale: The major concern about the health-care system in the United States is the quality of care provided. While disease prevention and collaborative care are important aspects, the primary focus of concern is ensuring that the care delivered meets high standards in terms of effectiveness, safety, and patient outcomes. Reduction in hospital-acquired drug-resistant infections, although relevant, is not the primary concern when evaluating the overall quality of healthcare services.

Correct Answer: A

Rationale: The correct answer is A: Potassium. Patients with type 1 diabetes receiving insulin are at risk of developing hypokalemia due to insulin's effects on potassium levels. Monitoring potassium levels is crucial to prevent complications such as cardiac arrhythmias. Choices B, C, and D are incorrect because AST, serum amylase, and sodium levels are not directly impacted by insulin therapy in type 1 diabetes and are not the primary concern that needs monitoring in this scenario.

Correct Answer: D

Rationale: The Moro reflex, also known as the startle reflex, is typically present in infants up to around 4-6 months of age and is characterized by the infant's response to a sudden loss of support or loud noise. It is not a normal finding in adolescents or older individuals. Therefore, if an adolescent patient exhibits the Moro reflex during a neurological assessment, it is considered abnormal and warrants further evaluation. Choices A, B, and C are incorrect because the Moro reflex is not expected or normal among adolescents and does not specifically indicate the status of either the peripheral or central nervous system in this age group.

Correct Answer: C

Rationale: The nurse should contact the case manager to discuss discharge options and support the client's partner. This action is appropriate as it involves seeking professional guidance and support for the client's partner who is struggling to care for the client. Option A is not the best choice as it solely focuses on involving another family member without addressing the partner's concerns directly. Option B is premature as recommending long-term care should be a well-considered decision involving multiple healthcare professionals. Option D delays the inevitable without providing a solution to the partner's current challenges.