Which of the following is a common complication associated with Dupuytren's contracture?

Correct Answer: B

Rationale: Dupuytren's contracture is a condition characterized by the thickening and tightening of the tissue beneath the skin of the hand, leading to the fingers being pulled into a bent position. One of the common complications associated with Dupuytren's contracture is the development of a Swan-neck deformity. This deformity is characterized by hyperextension of the proximal interphalangeal joint and flexion of the distal interphalangeal joint. It is important to recognize and address complications like Swan-neck deformity in individuals with Dupuytren's contracture to prevent further functional impairment and disability.

Correct Answer: C

Rationale: Osteoporosis is a condition characterized by an imbalance between bone resorption (breakdown of bone tissue) and bone formation, leading to bone thinning and increased risk of fractures. In osteoporosis, bones become weak and porous, making them more prone to fractures even with minor trauma. This condition is common in postmenopausal women and older individuals. Risk factors for osteoporosis include age, gender, family history, lack of physical activity, low calcium and vitamin D intake, smoking, excessive alcohol consumption, and certain medications. Treatment typically involves lifestyle modifications, including adequate calcium and vitamin D intake, weight-bearing exercises, and sometimes medication to help slow down bone loss and reduce fracture risk. Early detection and management of osteoporosis are crucial to prevent fractures and maintain bone health.

Correct Answer: B

Rationale: Benign prostatic hyperplasia (BPH) is a condition characterized by an abnormal enlargement of the prostate gland, which is non-cancerous. This enlargement can lead to lower urinary tract symptoms such as urinary hesitancy (difficulty starting the urine stream), weak urinary stream, incomplete bladder emptying, frequent urination, urgency, and nocturia. BPH is a common condition in aging men and is not usually associated with prostate cancer. Other conditions like prostate cancer, prostatitis, and prostate adenoma may present with similar symptoms, but BPH is specifically characterized by the non-cancerous enlargement of the prostate gland. Treatment for BPH may include medications to improve symptoms or surgical procedures to reduce the size of the prostate gland.

Correct Answer: A

Rationale: The clinical presentation of fever, chills, headache, and myalgia after a trip to sub-Saharan Africa is highly indicative of malaria. Specifically, the presence of intraerythrocytic ring forms and trophozoites on blood smear examination points towards Plasmodium falciparum as the most likely causative agent. Plasmodium falciparum is the most deadly of the Plasmodium species that cause malaria and is responsible for the majority of severe malaria cases worldwide. It is transmitted through the bite of infected Anopheles mosquitoes. Treatment for Plasmodium falciparum infection usually involves antimalarial medications such as artemisinin-based combination therapies.

Correct Answer: C

Rationale: Cryptosporidium parvum is a protozoan parasite often found in contaminated water sources. This parasite is known to cause watery diarrhea, abdominal cramps, and nausea in infected individuals. The presence of oocysts in the stool sample is characteristic of Cryptosporidium infection. Other parasitic infections may present with similar symptoms, but in this case, the most likely culprit based on the exposure history and laboratory findings is Cryptosporidium parvum.