Which of the following dental conditions is characterized by a localized collection of pus resulting from a bacterial infection of the tooth pulp?

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: B

Rationale: The priority nursing diagnosis for a patient undergoing surgery (closure of the sac) would be risk for infection. This is because surgical procedures increase the risk of infection due to the breach in the skin and introduction of microorganisms. Infection can lead to serious complications, delay healing, and prolong recovery time. Therefore, prevention, early detection, and prompt treatment of infections are essential in the perioperative period to ensure the best possible outcomes for the patient.

Correct Answer: B

Rationale: The statement "Multigravida patient has shorter labor" is the best response to Patient Josephine's question about her shorter labor compared to previous deliveries. In obstetrics, it is commonly observed that labor tends to be shorter in patients who have had previous pregnancies (multigravida patients) due to factors such as prior cervical changes and previous stretching of the birth canal. This phenomenon is known as "multigravida cervical efficiency," and it can lead to faster and more efficient labors in subsequent pregnancies for women who have had previous deliveries.

Correct Answer: A

Rationale: Acute narrow-angle glaucoma is a medical emergency that requires timely intervention to reduce intraocular pressure. Acetazolamide (Diamox) is a medication commonly used to treat this condition as it works as a carbonic anhydrase inhibitor, reducing the production of aqueous humor in the eye. By reducing the production of aqueous humor, acetazolamide helps decrease intraocular pressure rapidly, which is crucial in managing acute narrow-angle glaucoma. Other options listed, such as Furosemide (Lasix), Atropine, and Urokinase (Abbokinase), are not typically used in the treatment of acute narrow-angle glaucoma.

Correct Answer: A

Rationale: Rhinitis is inflammation of the nasal mucosa, and common clinical manifestations include nasal congestion (blockage or stuffiness), rhinorrhea (runny nose), and sneezing. These symptoms are often present in both allergic and non-allergic rhinitis. While headaches, sore throat, and fever can occur in some cases, they are not as specific to rhinitis as nasal congestion, rhinorrhea, and sneezing.

Correct Answer: B

Rationale: Unstable angina is characterized by chest pain at rest, which is not relieved by nitroglycerin. The ECG findings in unstable angina typically show ST-segment depression or T-wave inversion. It is considered a medical emergency as it can progress to a myocardial infarction. Stable angina, on the other hand, is chest pain or discomfort that occurs with exertion and is relieved by rest or medications like nitroglycerin. Acute myocardial infarction would typically present with ST-segment elevation on ECG, while Prinzmetal's angina is characterized by transient ST-segment elevation due to coronary artery vasospasm.

Correct Answer: C

Rationale: Verbal abuse is the most common form of abuse experienced by nurses in their workplace. This may include insults, yelling, threats, or intimidation directed towards the nurse. Verbal abuse can have a significant impact on the nurse's mental and emotional well-being, leading to stress, anxiety, and burnout. It is important for healthcare institutions to address and prevent verbal abuse to create a safe and respectful work environment for nurses and other healthcare professionals.

Correct Answer: C

Rationale: Humoral immunity is primarily responsible for protecting against infections by pathogens like viruses. In the case of the hepatitis B virus (HBV), the individual is exposed to the virus and develops immunity, which is typically mediated by antibodies produced by B cells. These antibodies circulate in the blood and can neutralize the virus, preventing future infections. This type of immunity is known as humoral immunity, as it involves the production of antibodies that target specific antigens, such as those present on the surface of the hepatitis B virus. In contrast, passive immunity is when antibodies are transferred from an external source, innate immunity provides immediate, non-specific defenses against pathogens, and cell-mediated immunity involves the activation of T cells to combat intracellular pathogens.

Correct Answer: A

Rationale: Selective IgA deficiency is a primary immunodeficiency disorder characterized by low or absent levels of immunoglobulin A (IgA) in the blood. Since IgA plays a crucial role in mucosal immunity and defense against pathogens at mucosal surfaces, individuals with this deficiency are more susceptible to recurrent bacterial infections, particularly of the respiratory and gastrointestinal tracts. In contrast, severe combined immunodeficiency (SCID) is a more severe immunodeficiency disorder affecting T and B lymphocytes, chronic granulomatous disease (CGD) is a disorder of phagocytes, and autoimmune hemolytic anemia is an autoimmune disease involving red blood cells, none of which are directly associated with selective IgA deficiency.