Correct Answer: C

Rationale: A dental abscess is characterized by a localized collection of pus that results from a bacterial infection of the tooth pulp, leading to swelling, pain, and inflammation. The infection typically occurs when bacteria enter the tooth through a cavity, crack, or other dental injury. The abscess can cause significant pain and discomfort and must be treated promptly by a dentist to prevent further complications. Dental caries refer to tooth decay or cavities that result from the breakdown of tooth structure by acids produced by bacteria. Periodontitis is a severe gum infection that damages the soft tissue and destroys the bone that supports the teeth. Oral candidiasis is a fungal infection that affects the mouth and throat.

Correct Answer: C

Rationale: The most appropriate nursing action for managing a patient with dependent edema in the lower extremities is to administer diuretics as prescribed. Diuretics help the body remove excess fluid, reducing swelling and edema in the extremities. It is important to follow the healthcare provider's orders for administering diuretics to ensure the patient's fluid balance is managed effectively. While elevating the legs above heart level and applying compression stockings may provide temporary relief, addressing the underlying cause of fluid retention with diuretics is essential for long-term management of the edema in a patient with heart failure. Encouraging increased fluid intake would not be appropriate in this case, as the focus should be on reducing fluid overload rather than increasing fluid intake.

Correct Answer: B

Rationale: Acetaminophen (Tylenol) is given pre-operatively to decrease intra-operative anesthetic requirements and post-operative pain. It is a common analgesic that can help reduce the amount of intra-operative anesthesia needed and provide some pain relief during the surgery. Unlike drugs like Celebrex, Ibuprofen, and Demerol, Acetaminophen does not have anti-inflammatory properties, but it is effective in managing pain and can contribute to overall pain control before, during, and after surgery. This makes it a preferred choice for pre-operative medication in order to decrease the need for higher doses of anesthetics and reduce post-operative pain levels.

Correct Answer: C

Rationale: In pneumothorax, air enters the normally negative pressure space between the lung and chest wall, leading to loss of negative intra-pleural pressure. However, this loss of negative pressure typically does not directly result in lung collapse. Instead, the accumulation of air in the pleural space can lead to a pressure imbalance, causing the lung to collapse partially or completely, which is known as atelectasis. Therefore, it is more accurate to state that the loss of negative intra-pleural pressure can result in lung collapse due to the presence of air in the pleural space, rather than the loss of negative pressure itself causing the collapse.

Correct Answer: B

Rationale: Unilateral neglect is a common condition following a stroke where the individual fails to attend to one side of their body or to the space on that side. In this case, Mang Jose exhibiting signs of unilateral neglect by only shaving one side of his face, neglecting the other side. This behavior demonstrates a lack of awareness or attention to the affected side of his body, indicating a classic symptom of unilateral neglect.