Correct Answer: A

Rationale: The clinical manifestations of inflammation of the vulva and the presence of frothy, yellow-green discharge are indicative of a vaginal infection caused by Trichomonas vaginalis. Trichomoniasis is a sexually transmitted infection caused by a protozoan parasite. It commonly presents with symptoms such as frothy, yellow-green vaginal discharge, vaginal itching, inflammation of the vulva, and sometimes a foul odor. Testing for Trichomonas vaginalis can be done through microscopic examination of the vaginal discharge or through nucleic acid amplification tests. Treatment usually involves the use of antibiotics such as metronidazole or tinidazole. It is important to promptly diagnose and treat trichomoniasis to prevent complications and further transmission.

Correct Answer: A

Rationale: The symptoms of urinary frequency, dysuria, and fever in a 35-year-old man are indicative of chronic bacterial prostatitis. Prostatitis is inflammation of the prostate gland, which can be caused by bacterial infection. Chronic bacterial prostatitis is characterized by recurrent episodes of infection leading to symptoms like urinary urgency, frequency, dysuria, and sometimes fever. It is important to identify and treat chronic bacterial prostatitis promptly to prevent complications and improve quality of life for the patient.

Correct Answer: B

Rationale: When admitting a pregnant patient who has experienced a bleeding episode in late pregnancy, the top priority nursing intervention is to assess fetal heart rate (FHR) and maternal vital signs. This assessment will help the nurse determine the extent of the blood loss and its impact on both the mother and the fetus. Monitoring uterine contractions is important as well, but not the priority in this situation. Placing clean disposable pads to collect any drainage is important for ongoing assessment and management but can be done after assessing the FHR and vital signs. Performing a venipuncture for hemoglobin and hematocrit levels is necessary for further evaluation but can be done after the initial assessment of FHR and vital signs. Checking the patient and fetal well-being is crucial in situations of bleeding in late pregnancy to ensure timely and appropriate intervention.

Correct Answer: D

Rationale: Immunotherapy, also known as allergy shots, is a form of treatment that can help reduce symptoms for individuals with severe allergies to substances such as pollen, dust mites, or pet dander. This treatment involves exposing the patient to small, increasing doses of the allergen over time to help the immune system gradually build up a tolerance. Patients with severe allergies to grass and tree pollen would most likely benefit from immunotherapy as it can help reduce their allergy symptoms and improve their quality of life. On the other hand, individuals with anaphylactic reactions to insect stings (Choice A), allergies to eggs and dairy (Choice B), or a positive tuberculin skin test (Choice C) are not typically candidates for immunotherapy as their conditions are not related to the type of allergies that are commonly treated with this method.

Correct Answer: D

Rationale: Fats, also known as lipids, are the most calorie-dense nutrient, providing 9 kcal per gram. This high calorie content is due to the structure of fats, which contain more carbon-hydrogen bonds, making them more energy-dense compared to carbohydrates and proteins. Carbohydrates and proteins, on the other hand, provide 4 kcal per gram each. This makes fats an important source of energy in the diet, but they should be consumed in moderation to maintain a healthy balance of nutrients.