A patient presents with a displaced fracture of the distal radius and ulna after a fall. What is the preferred initial treatment for this injury?

Correct Answer: A

Rationale: In the case of a displaced fracture of the distal radius and ulna, the preferred initial treatment is typically closed reduction and splinting. Closed reduction involves manually realigning the fractured bones without the need for surgery. Splinting is then utilized to immobilize the wrist and forearm to allow for proper healing of the fracture. This approach is often effective in realigning the bones and stabilizing the injury, allowing for adequate healing without the need for more invasive interventions like surgery. Following the initial management with closed reduction and splinting, the patient's progress will be monitored, and further interventions may be considered based on the specific characteristics of the fracture and the patient's response to treatment.

Correct Answer: A

Rationale: Long-term corticosteroid use in patients with rheumatoid arthritis can lead to osteoporosis, which is a common complication. Osteoporosis causes weakening of the bones, increasing the risk of fractures, particularly in weight-bearing bones such as the hip, spine, and wrist. Osteoporotic fractures are a significant concern in patients on long-term corticosteroid therapy, highlighting the importance of monitoring bone health and considering preventive measures such as calcium, Vitamin D supplementation, and regular bone density testing. While osteonecrosis of the femoral head and avascular necrosis of the talus can also occur as complications of corticosteroid use, osteoporotic fractures are more commonly associated with this type of therapy in patients with rheumatoid arthritis. Septic arthritis, on the other hand, is not directly related to corticosteroid use but can occur due to other factors such as joint infections.

Correct Answer: A

Rationale: Benign prostatic hyperplasia (BPH) can lead to urinary retention, which is a common complication associated with this condition. As the prostate gland enlarges, it can obstruct the flow of urine from the bladder through the urethra. This obstruction can result in difficulty starting to urinate, weak urine flow, frequent urination, incomplete bladder emptying, and eventually urinary retention. If left untreated, urinary retention can lead to serious complications such as urinary tract infections, bladder damage, kidney damage, and even kidney stones. Therefore, urinary retention is an important complication to be aware of in patients with BPH.

Correct Answer: B

Rationale: The most likely diagnosis in this scenario is epididymitis. Epididymitis is an inflammation of the epididymis, a coiled tube at the back of the testicle that stores and carries sperm. Common symptoms include scrotal pain, swelling, erythema (redness), and a tender, fluctuant mass in the scrotum due to an abscess. Risk factors for epididymitis include urinary tract infections, sexually transmitted infections (such as gonorrhea or chlamydia), and recent urological procedures. It is important to differentiate epididymitis from testicular torsion, which would present with sudden, severe testicular pain, absent cremasteric reflex, and a high-riding testicle. Testicular cancer typically presents as a painless mass or swelling in the scrotum, and hydrocele presents as painless scrotal swelling due to a collection of fluid

Correct Answer: B

Rationale: Entamoeba histolytica is a parasitic protist known to cause amoebiasis, a gastrointestinal infection that can lead to symptoms such as foul-smelling diarrhea containing cysts. Upon microscopic examination of the feces, the presence of Entamoeba histolytica cysts is a key diagnostic feature. This parasite can be transmitted through contaminated food or water, and individuals infected with Entamoeba histolytica may experience abdominal pain, bloody diarrhea, and weight loss. Proper diagnosis and treatment are essential to manage this infection and prevent complications.