Correct Answer: B

Rationale: The laboratory test used to monitor the therapeutic effect of warfarin therapy is the International Normalized Ratio (INR). Warfarin is a commonly prescribed anticoagulant medication that works by inhibiting the action of vitamin K-dependent clotting factors. Maintaining the INR within the target range specific to the indication for anticoagulation (e.g., DVT prevention or treatment) is essential to balance the risk of bleeding and clotting.

Correct Answer: A

Rationale: Educating the client about the importance of balanced nutrition and frequent monitoring of blood glucose levels should be prioritized to address the client's concerns about managing blood sugar levels while breastfeeding. This intervention helps empower the client to make informed choices about her diet and monitor her blood sugar levels effectively. By focusing on balanced nutrition and regular blood glucose monitoring, the client can better manage her blood sugar levels during the postpartum period and while breastfeeding, reducing the risk of complications associated with gestational diabetes. It also promotes overall health and well-being for both the mother and the baby.

Correct Answer: C

Rationale: Even though Ms. C's self-esteem and weight have improved, her continued negative self-talk and use of derogatory terms like "fatty" indicate a distorted perception of her body image. This distortion needs to be addressed and corrected for her overall long-term psychological well-being. By focusing on addressing the disturbed body image, the nursing team can help Ms. C develop a more positive self-perception and maintain the progress she has made towards recovery from anorexia nervosa. It is important to prioritize interventions that promote a healthier and more realistic body image in order to support her ongoing recovery journey.

Correct Answer: A

Rationale: The patient's symptoms of chest pain occurring during heavy lifting or physical exertion and being relieved by rest are classic characteristics of stable angina. Stable angina is caused by transient myocardial ischemia due to a fixed coronary artery obstruction. Typically, the pain is predictable and reproducible, occurring with exertion and relieved by rest. The transient ST-segment depression on ECG is also a common finding in stable angina, reflecting myocardial ischemia during episodes of chest pain.

Correct Answer: C

Rationale: The correct next step after positioning the child is to drop the medicine into the ear canal. This is typically the next step in administering ear drops for a child. The cleaning and positioning steps are to prepare the ear for receiving the medication. Dropping the medicine into the ear canal ensures that the medication can reach the affected area effectively. Once the medicine is dropped into the ear canal, it is important to follow any additional instructions provided by the healthcare provider regarding keeping the ear in a certain position or any other post-administration care steps.