Correct Answer: C

Rationale: Periodontitis is the dental condition characterized by inflammation and destruction of the supporting structures of the teeth, including the gingiva (gums), periodontal ligament, and alveolar bone. It is usually caused by untreated gingivitis, where plaque buildup along the gumline leads to bacterial infection and inflammation, resulting in destruction of the tissues that support the teeth. If left untreated, periodontitis can lead to tooth loss and other complications. Gingivitis, on the other hand, is inflammation of the gums without involvement of the supporting structures, while dental caries refer to tooth decay or cavities in the enamel. Dental abscess is a localized collection of pus caused by a bacterial infection.

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.

Correct Answer: A

Rationale: Polycystic ovary syndrome (PCOS) is a common endocrine disorder in women of reproductive age. It is characterized by the presence of multiple fluid-filled sacs (cysts) within the ovaries, which can be visualized on ultrasound. Women with PCOS often experience menstrual irregularities such as irregular periods or no periods, as well as symptoms of hyperandrogenism like hirsutism (excessive hair growth) and acne. Other common features of PCOS include insulin resistance and obesity. It is important to note that not all women with PCOS will have ovarian cysts, but the presence of multiple cysts is a common finding in this condition.

Correct Answer: D

Rationale: All of the components -explanation of the procedure and alternatives to the procedure (I), discussion of potential risks and benefits of the procedure (II), and confirmation that the patient understands the risks, benefits, and any alterations (III) -are essential parts of informed consent. Providing information about the procedure and its alternatives, disclosing potential risks and benefits, and ensuring that the patient comprehends this information are crucial to obtaining valid informed consent prior to any medical procedure.

Correct Answer: B

Rationale: Nitrous oxide, also known as "laughing gas," is a safe and effective pharmacological option for pain management during labor. Nitrous oxide is commonly used in labor and delivery settings as it has minimal effects on the baby and allows the woman to remain in control of her pain management. It provides quick pain relief when inhaled and can be adjusted to the woman's needs during labor. Ibuprofen, morphine, and diazepam are not typically used for pain management during labor due to their potential risks and side effects, especially for the baby.