Which imaging modality is most commonly used to diagnose fractures of the long bones, such as the femur or tibia?

Correct Answer: A

Rationale: X-ray is the most commonly used imaging modality to diagnose fractures of the long bones, such as the femur or tibia. X-rays are readily available, fast, cost-effective, and provide detailed images of the bone structures. Fractures appear as breaks or discontinuities in the bone on X-ray images, making it an excellent tool for diagnosing bone fractures. In many cases, X-rays are sufficient to confirm the presence, location, and type of fracture, allowing for appropriate treatment planning. Other imaging modalities like MRI and CT scans may be used for further evaluation in complex cases, but X-ray remains the initial and primary choice for diagnosing long bone fractures.

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: B

Rationale: The presentation of a patient with diabetes mellitus showing symptoms of polyuria, polydipsia, nocturia, and fatigue along with laboratory findings of hyperglycemia, glycosuria, and ketonuria is indicative of diabetic ketoacidosis (DKA). DKA is a serious complication of diabetes characterized by hyperglycemia, metabolic acidosis, and ketosis. The increased glucose levels lead to glycosuria, causing osmotic diuresis resulting in polyuria, polydipsia, and nocturia. The body starts breaking down fats for energy in the absence of sufficient insulin, leading to the production of ketones causing ketonuria. The patient may also experience fatigue due to the metabolic abnormalities present in DKA.

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.