Property:AnswerBExp
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This loop shows an increase in end systolic volume compatible with increase in contractility. +
Point B represents the posterior cord of the brachial plexus, which gives rise to the axillary and radial nerves. While posterior cord injury would cause weakness of the deltoid muscle through loss of axillary nerve fibers, the patient would most likely exhibit additional symptoms arising from loss of radial nerve function, such as wrist drop. +
Olanzapine is an atypical antipsychotic agent. Olanzepine is indicated for schizophrenia, obsessive-compulsive disorder (OCD), anxiety disorders, depression, mania, and Tourette syndrome. +
Caspase 3 initiates apoptosis (programmed cell death) in cells. HDL, through its effect on caspase 3, prevents apoptosis in cells. It also reduces the generation of reactive oxygen species (ROS). +
Incorrect. Urgent CT scan is required in cases of suspected pulmonary embolism. This is not done for patients with panic disorders. +
HIV patients with CD4 between 200 and 500 cells/mL may develop oral candidiasis and Kaposi's sarcoma. Prophylactic administration of drugs is not recommended when CD4 counts are > 200 cells/mL. +
Aplasia is defined as the presence of primordial tissue but absence of organ development. +
The Pol gene codes for HIV protease and mutations usually lead to resistance to certain protease inhibitors. +
'''Correct'''-In stable patients with suspected genitourinary tract injury, the first urologic study other than a urinalysis should be on intravenous pyelogram. The technique of high-dose drip infusion is desirable because the high concentration of contrast achieved greatly facilitates the interpretation in an unprepared patient. +
'''Incorrect'''-Since the patient is stable following a blunt trauma to his kidney, surgical exploration and treatment is not indicated. Failure of a conservative treatment might indicate the necessity for a surgical intervention. +
Dysplasia is a reversible abnormal growth with loss of cellular shape, size, and orientation. Barrett's esophagus, ''per se'', is not a form of dysplasia. Nonetheless, long-standing Barrett's esophagus may result in low grade dysplasia, then high grade dysplasia, and finally esophageal adenocarcinoma. +
5-HT2 receptors are not part of the inhibitory pathway of the basal ganglia. 5-HT2 mediate many of the central and peripheral physiologic functions of serotonin. +
This image typically depicts spinal cord lesions consistent with ALS. ALS may involve both the descending corticospinal tracts (upper motor neurons) and the anterior horns (lower motor neurons). The involvement of both the upper and lower motor neuron pathways is the hallmark of ALS. +
Broca's aphasia is a speech dysfunction characterized by intact comprehension, impaired speech fluency, and impaired repetition. It results from damage to the inferior frontal gyrus. Broca's aphasia is also known as motor or expressive aphasia. +
Decrease in arterial pCO2 leads to increase in the cerebral blood pH and subsequent cerebral artery vasoconstriction. +
This refers to the right posterior cerebral artery (PCA) whose occlusion can explain the symptoms in our patient. PCA strokes usually cause contralateral homonymous hemianopia with macular sparing. +
Right upper quadrantanopia is characterized by loss of vision in the right upper quadrant of the visual field. It usually occurs with left temporal lesions due to the interruption of the left Meyer's loop. Prolactinomas do not affect the temporal lobe. +