Which of the following dental conditions is characterized by the irreversible demineralization of the enamel and dentin, leading to cavitation and destruction of tooth structure?

Correct Answer: B

Rationale: Dental caries, commonly known as tooth decay, is characterized by the irreversible demineralization of the enamel and dentin due to acids produced by bacterial activity. This process leads to cavitation and destruction of the tooth structure, ultimately resulting in the formation of a cavity. Gingivitis is inflammation of the gums, periodontitis is inflammation and infection of the supporting structures of the teeth (gums, bone, and ligaments), and a dental abscess is a collection of pus in the tissues surrounding the tooth, none of which are specifically related to the irreversible demineralization of enamel and dentin seen in dental caries.

Correct Answer: A

Rationale: The best response of Nurse Virgo is to explain to Patient Benito that his body needs to function well with his pancreas. The pancreas plays a critical role in the digestive system by producing digestive enzymes and hormones that help regulate blood sugar levels. Removing the pancreas would result in serious health consequences and complications, as the body relies on it for essential functions. It is important for the patient to understand the significance of the pancreas and why its removal is not a viable solution.

Correct Answer: B

Rationale: In documenting procedures, it is essential to record information that is relevant to the specific procedure done. Recording the date (A), lot number (C), and needle gauge (D) are critical details that provide important context and traceability for the procedure performed. The date helps to keep track of when the procedure was conducted. The lot number is essential for tracking the specific batch of materials used in the procedure. The needle gauge is important for ensuring the appropriate equipment is used for the procedure. However, recording the manufacturer (B) is not necessary for documenting the procedures as it does not directly impact the quality or traceability of the procedure itself.

Correct Answer: B

Rationale: The presentation of a pruritic, erythematous rash with edematous plaques and vesicles on the hands and fingers in a patient with a history of exposure to detergents and frequent hand washing is most indicative of contact dermatitis. Contact dermatitis can be caused by direct contact with irritants such as detergents or chemicals, leading to skin irritation and inflammation. In this case, the history of exposure to detergents and hand washing suggests that the rash is likely due to irritant contact dermatitis. Atopic dermatitis, psoriasis, and pityriasis rosea do not typically present with the same pattern of rash in response to irritant exposure.

Correct Answer: A

Rationale: Aplastic anemia is a condition characterized by a reduction in the number of all three blood cell types: red blood cells, white blood cells, and platelets. The patient's presentation of bone pain, fatigue, frequent infections, pancytopenia (decreased counts of all blood cell types), hypocellular bone marrow (reduced cellularity in the bone marrow), and absence of reticulocytes is indicative of aplastic anemia.

Correct Answer: D

Rationale: The constellation of symptoms presented (periorbital edema, hypertension, proteinuria) along with the laboratory findings (elevated creatinine and urea levels, hyperkalemia, metabolic acidosis) are classical signs of chronic kidney disease (CKD). In CKD, the kidneys gradually lose their function over time, leading to impaired filtration of waste products and electrolyte imbalance. The presence of hypertension and proteinuria are common in CKD due to the compromised renal function. Additionally, elevated serum creatinine and urea levels, hyperkalemia, and metabolic acidosis are indicative of kidney dysfunction.

Correct Answer: C

Rationale: Placenta previa is a condition where the placenta partially or completely covers the cervix, leading to painless vaginal bleeding during pregnancy. In the scenario described, the painless, bright red vaginal bleeding at 34 weeks gestation with a closed cervix is classic for placenta previa. This condition is more common in the third trimester and can be diagnosed through ultrasound. It is important to manage placenta previa carefully to prevent complications such as severe bleeding, preterm birth, and maternal/fetal distress.

Correct Answer: A

Rationale: The best response is to ask Ms. C why she is running and trotting around the room. This approach is empathetic and allows for open communication to understand her behavior. It is important to gather information before jumping to conclusions or making threats about changing her exercise program or eating habits. By showing concern and curiosity, you can address the situation in a supportive and constructive manner.

Correct Answer: A

Rationale: A district hospital is an example of a secondary health facility. Secondary health facilities are the intermediate level of healthcare services, providing a higher level of care compared to primary health facilities like rural health units and barangay health stations. District hospitals typically offer more specialized medical services, diagnostic facilities, and inpatient care that are not available at lower-level health facilities. When Nurse Vince refers a patient to a district hospital, it means that the patient requires more extensive and specialized medical care beyond what can be provided at the primary level of care.