Please post your sample questions in this thread.... but not your answers!! 😱
Post your answer in the Answer thread and link that post underneath your question.
I'll start.
A 29 year old medical student developed a positive PPD (purified protein derivative) test. She was started on isoniazid (INH) and rifampin prophylaxis. Three months into her therapy, she began to experience muscle fasciculations and convulsions. Administration of which of the following vitamins might have prevented these symptoms?
A) Niacin
B) Pyridoxine
C) Riboflavin
D) Thiamine
E) Vitamin C
Tay-Sachs, an autosomal recessive disease caused by a deficiency of hexosaminidase A, is lethal in childhood. In a population of Ashkenazi Jews, blood testing showed the frequency of heterozygotes to be 0.1. What is the probability that the first child of two individuals from this population with no family history of the disease will have Tay-Sachs?
A) 0.25
B) 0.11
C) 0.0625
D) 0.0025
E) Cannot be calculated from the information given.
An alcoholic who is not presently drinking requires a greater than normal amount of an over-the-counter sedative to go to sleep. The same alcoholic, if drinking, can easily overdose on this sedative. The sober alcoholic's increased sedative requirement is due to which of the following changes occuring in the hepatocytes?
A) Markedly decreased mitochondria
B) Markedly decreased ribosomes
C) Markedly enlarged microvilli
D) Markedly increased Golgi bodies
E) Markedly increased smooth endoplasmic reticulum
When a histological section is taken of an abscess, many of the observed neutrophils show a degenerative change in which the nucleus has undergone fragmentation. This process is known as
A) caseous necrosis
B) coagulative necrosis
C) karyolysis
D) karyorrhexis
E) pyknosis
A 34 year old male intravenous drug abuser presents with a swollen, painful knee joint of five days duration. On physical examination he is febrile. There is pain and limitation of motion of the knee. Aspiration of joint fluid reveals numerous white blood cells. Culture of the joint fluid will most likely reveal
A) Borrelia burgdorferi
B) Hemophilus influenzae
C) Mycobacterium tuberculosis
D) Neisseria gonorrhoeae
E) Staphylococcus Aureus
A 65 year old man whose chest x-ray shows an enlarged heart develops shortness of breath. Assuming his symptoms are directly related to his cardiovascular status, which of the following mechanisms is responsible for his respiratory problems?
A) Decreased heart rate
B) Decreased oncotic pressure
C) Increased pulmonary arterial pressure
D) Increased pulmonary wedge pressure
E) Increased systemic arterial pressure
During an autopsy, a medical student drops both adrenal glands into a bucket of formalin without identifying which is which. Later, a small nodule is found on one of the glands, and it becomes necessary to say which one contains the nodule. How can you tell the left adrenl gland from the right?
A) The left adrenal gland has a flattened cross section and the right has a triangular cross section
B) The left adrenal gland typically weighs five times as much as the right.
C) The right adrenal gland has a flattened cross section and the left has a triangular cross section
D) The right adrenal gland typically weighs five times as much as the left.
E) There is no way to tell them apart.
A 26 year old woman tentatively diagnosed with schizophrenia has been treated successfully with haloperidol for one month. One hour ago, she suddenly became delerious. Her temperature is 104ºF, blood pressure is 180/90, her heart rate is 90, and respiratory rate is 18. She has a course tremor of her upper extremities and diffuse muscular rigidity. In addition to hydration, which of the following therapies is indicated?
A) Amantadine
B) Benztropine
C) Dantrolene
D) Midazolam
E) Phenytoin
