Correct Answer: C

Rationale: The color black is commonly used for general waste or non-recyclable materials, which includes papers and other waste products typically found in an office setting. By designating a black trash bin for the proper disposal of these items, it helps in efficient waste management and ensures that they are disposed of correctly. This color coding system helps individuals easily identify which type of waste goes in which bin, promoting recycling and proper waste segregation practices in the office environment.

Correct Answer: C

Rationale: The patient's presentation of swelling of the ankles, dyspnea on exertion, and orthopnea is highly suggestive of heart failure. The echocardiogram findings of decreased left ventricular ejection fraction and dilated left ventricle are characteristic of heart failure with reduced ejection fraction (HFrEF), also known as systolic heart failure. In this condition, the heart's ability to pump blood effectively is compromised, leading to symptoms of congestion and decreased cardiac output. The decreased ejection fraction indicates that the heart is not able to efficiently pump out blood with each contraction. Dilatation of the left ventricle is a compensatory mechanism in response to increased volume overload.

Correct Answer: C

Rationale: Children with ADHD often display hyperactive and impulsive behaviors, such as excessive running, climbing, and fidgeting. These behaviors are characteristic symptoms of the hyperactive-impulsive subtype of ADHD. Children with ADHD may struggle to sit still, have difficulty engaging in quiet activities, and often seem on the go. Therefore, the nurse would expect to see signs of excessive movement and restlessness in a child with ADHD.

Correct Answer: B

Rationale: Attrition is the dental condition characterized by the abnormal wearing away of tooth structure due to factors such as bruxism (grinding or clenching of teeth) or acidic erosion. Bruxism can cause tooth-to-tooth contact that leads to the wearing down of the tooth enamel and eventually can affect deeper layers of the tooth. Acidic erosion, on the other hand, is caused by the direct contact of teeth with acidic substances, which can lead to the gradual loss of tooth structure over time. Dental caries refers to tooth decay caused by bacteria, abrasion involves wearing away of tooth structure due to external factors like improper brushing habits, and erosion specifically relates to the loss of tooth structure caused by acidic substances.

Correct Answer: C

Rationale: Uterine rupture is the most likely cause of these symptoms in a pregnant woman presenting with sudden onset of severe abdominal pain, vaginal bleeding, rigidity of the abdomen, and palpable fetal parts abdominally. Uterine rupture is a rare but serious complication of pregnancy, typically occurring during labor in women with a previous cesarean delivery or other uterine scars. The sudden onset of severe abdominal pain can be associated with vaginal bleeding due to the tearing of the uterine wall, causing fetal parts to be palpable abdominally. This is a life-threatening emergency that requires immediate medical intervention. Ectopic pregnancy, pelvic inflammatory disease, and ovarian torsion may present with abdominal pain and vaginal bleeding but would not typically present with palpable fetal parts abdominally in a pregnant woman.