Correct Answer: B

Rationale: Duplex venous ultrasonography is the most accurate tool for assessing and diagnosing venous thrombosis. It is a non-invasive imaging technique that combines Doppler flow studies with conventional ultrasonography. This allows for the visualization of blood flow in the veins and identification of any blood clots or obstructions. Duplex venous ultrasonography is highly sensitive and specific for detecting deep vein thrombosis (DVT) in the lower extremities, making it the preferred imaging modality for diagnosing venous thrombosis. Other imaging modalities like ascending contrast venography, magnetic resonance imaging, and plethysmography are less commonly used due to their disadvantages compared to duplex venous ultrasonography such as invasiveness, cost, and lower accuracy.

Correct Answer: B

Rationale: A former cigarette smoker is at increased risk for thrombus formation due to the damage smoking causes to the blood vessels, increasing the likelihood of blood clots. Smoking can also contribute to inflammation and increased platelet activation, further promoting clot formation. This risk factor is particularly concerning in a client undergoing a total hip replacement surgery, as immobility and surgery itself can also increase the risk of blood clots forming. Monitoring and addressing this risk factor is important in preventing potential complications such as deep vein thrombosis or pulmonary embolism in this client population. While the other assessment findings are important to consider for overall health, the former cigarette smoking status is specifically associated with thrombus formation in this scenario.

Correct Answer: A

Rationale: For a 7-year-old client recovering from partial-thickness burns with sensitivity to loud noises and bright lights, along with a tendency to become overstimulated, the best teaching environment would be the client's room. This setting provides a familiar and comforting space where the client feels secure and less exposed to external stimuli that may trigger discomfort or anxiety. Being in her own room allows the client to focus better, feel more at ease, and have better communication with the nurse without distractions from bright lights, loud noises, or other people around. This controlled and peaceful environment contributes to a more effective teaching and learning experience for the client, promoting better understanding and retention of information.

Correct Answer: A

Rationale: A blood pressure of 142/92 mmHg in a client in the third trimester of pregnancy is elevated and could indicate the development of preeclampsia, a serious hypertensive disorder that can have adverse effects on both the mother and the fetus. Preeclampsia is characterized by high blood pressure accompanied by signs of organ damage, such as proteinuria and changes in other laboratory values. Immediate intervention is required in this situation, as preeclampsia can lead to complications such as seizures (eclampsia), stroke, and placental abruption. It is essential for the nurse to further assess the client and notify the healthcare provider promptly for appropriate management.

Correct Answer: B

Rationale: Children diagnosed with hypertrophic cardiomyopathy should not participate in competitive sports such as football due to the potential risk of sudden cardiac events. Physical activity and sports with lower intensity may be allowed, but organized competitive sports with high intensity (such as football) are generally contraindicated. It is important for the health care team to prioritize the child's safety and well-being over sports participation in cases of cardiomyopathy. The nurse should communicate this information to the mother to help her understand the importance of limiting the child's physical activities to reduce the risk of complications related to hypertrophic cardiomyopathy.