MCQ for website Welcome to your MCQ for website Name Email Phone A 75 -year-old man with a history of chronic heart failure presents to the emergency department with worsening shortness of breath, especially at night. His medical history includes hypertension, diabetes, and a myocardial infarction 4 years ago. On examination, he has elevated jugular venous pressure (JVP) and bilateral rales at the lung bases. His respiratory rate is irregular, and an arterial blood gas shows mild respiratory alkalosis. The patient is placed on continuous positive airway pressure (CPAP), and his symptoms improve. The irregular breathing pattern described in this patient is most consistent with which of the following? a. Kussmaul respiration b. Biot's respiration c. Apneustic breathing d. Cheyne-Stokes respiration None A 50-year-old woman presents to the clinic with complaints of palpitations, weight loss and tremors over the past few months. She also mentions sweating more than usual and experiencing frequent bowel movements. On examination, her heart rate is 110/minute, and her blood pressure is 146/80 mmHg, enlargement of the thyroid gland. Laboratory results show Low serum TSH level, Free T3 and T4 level elevated. Which of the following is the most likely diagnosis? a. Hypothyroidism b. Hashimoto's thyroiditis c. Grave's disease d. subclinical hypothyroidism None A 34 year old male undergoes knee surgery, during which the surgeon must carefully navigate the popliteal fossa to avoid damaging critical neurovascular structures. Given the complex anatomy of the region, which of the following statement about the contents and relationship within the popliteal fossa is most accurate? a. The tibial nerve is the most superficial structure in the popliteal fossa and lies medial to the popliteal artery throughout its course. b. The popliteal artery is the deepest structure within the fossa and lies anterior to both the vein and the tibial nerve. c. The common fibular nerve runs medially in the popliteal fossa and gives off vehicular branches before dividing. d. The small saphenous vein enters the popliteal fossa deeply and drains directly into the femoral vein. e. The popliteal lymph nodes are located superficial to the fascia Lata and drain on the thigh. None A 45-year-old carpenter presents to the clinic with numbness and tingling in the ring and little fingers of his right hand. He reports that the symptoms worsen when he rests his elbow on hard surfaces. On examination, there is wasting of the hypothenar eminence and weakness in finger abduction. Tinel’s sign is positive at the elbow. Which of the following best explains the site of nerve compression in this patient? a. Compression within the carpal tunnel beneath the flexor retinaculum b. Compression in the cubital tunnel posterior to the medial epicondyle c. Injury at the lateral epicondyle affecting the common extensor origin d. Entrapment between the two heads of the pronator teres None A 40-year-old man presents with complaints of abdominal pain, neuropsychiatric symptoms, and dark-colored urine that worsens after alcohol intake. He reports episodes of anxiety and confusion. Physical examination shows no signs of jaundice or hepatosplenomegaly. Urinalysis reveals elevated porphobilinogen (PBG) and δ-aminolevulinic acid (ALA). Genetic testing confirms acute intermittent porphyria. Which of the following amino acids is a direct precursor in the first step of heme synthesis, combining with succinyl-CoA to form δ-aminolevulinic acid? a. Glycine b. Arginine c. Tyrosine d. Serine e. Glutamine None Time's up
