An infant is born to a woman who has received very little prenatal care. The mother is anxious, complains of heat intolerance and fatigue, and reports that she has not gained much weight despite having an increased appetite. On examination the mom is tachycardic, has a tremor, and has fullness in her neck and in her eyes. The infant is most likely at risk for development of which of the following?
b. Heart failure
d. Third-degree heart block
the answer is below…
The United States Medical Licensing Examination, or USMLE for short, is a three-part licensing examination that is required in order to receive a license to practice medicine within the United States.
The USMLE assesses a physician’s ability to apply knowledge, concepts, and principles, and to determine fundamental patient-centered skills that are important in health and disease and that constitute the basis of safe and effective patient care.Examination committees composed of medical educators and clinicians from across the United States and its territories prepare the examination materials each year.
This exam is designed by the Federation of State Medical Boards and the National Board of Medical Examiners to determine whether or not an individual understands and can apply the knowledge necessary to practice medicine safely and intelligently.
The USMLE is actually comprised of three different exams that are referred to as steps, which examine the individual’s knowledge of specific topics related to the field of medicine such as basic science, medical knowledge, medical skills, clinical science, and the application of all of these skills and areas of knowledge in the medical field.
All three steps of the USMLE include a series of computerized multiple-choice questions, but the format of the exam and the information covered in each multiple-choice section is different for each step of the USMLE. The USMLE Step II also has a clinical skills portion that examines an individual’s ability to work with real patients and the USMLE Step III has a computerized patient simulation portion in addition to the multiple-choice section of the exam. In order for an individual to receive a license to practice medicine, the individual must pass all three steps of the USMLE.
The answer is b; Heart failure.[7-9]
The infant is likely at risk for neonatal thyrotoxicosis. Neonatal thyrotoxicosis usually disappears within 2 to 4 months as the concentration of thyroid-stimulating immunoglobulins (7S gamma globulin) diminishes. Unlike TSI, thyroid-stimulating hormone (TSH) does not cross the placenta. All forms of thyrotoxicosis are more common in females, with the exception of neonatal thyrotoxicosis, which has an equal sex distribution. Symptoms include tachycardia and tachypnea, irritability and hyperactivity, low birth weight with microcephaly, severe vomiting and diarrhea, thrombocytopenia, jaundice, hepatosplenomegaly, and heart failure. In severely affected infants, the disease can be fatal if not treated vigorously and promptly. Third-degree heart block is not a feature of this disease, but is sometimes seen in infants born to mothers with systemic lupus erythematosus.