First Aid step 1 2024 videos,books and qbank


Гео и язык канала: Индия, Английский
Категория: Образование


💫2021 First Aid step 1 Videos💫
💫💥Welcome!
Here is the original place for Providing FullFirst Aid step 1 Videos 2021 ,

Связанные каналы  |  Похожие каналы

Гео и язык канала
Индия, Английский
Категория
Образование
Статистика
Фильтр публикаций


Репост из: NBME | CMS
Видео недоступно для предпросмотра
Смотреть в Telegram
🎉 FREE NBME Self-Assessment! 🎉

Get NBME Form 25 at no cost—limited-time offer!

⏰ Don't Miss Out!

👉 Sign Up Now: 👇👇👇👇👇👇👇

🔗 nbmeway.com/nbme/signup.php

Stay updated on Telegram:

💬 @NBMECMS


🚀 Ace the USMLE Step 1 in 2024! 🚀

Get exclusive access to the Ultimate USMLE Guide with a limited-time discount! Master everything you need to succeed, from exam strategies to essential study tools, all in one comprehensive course.

Enroll now and save! 👉 USMLE Step 1 Excellence - 2024 Ultimate Guide
👩‍⚕️ Perfect for 2024 candidates
⏰ Limited discount available – don’t miss out!


Educational objective: Lesions of the jugular foramen can result in jugular foramen (Vernet) syndrome, which is characterized by the dysfunction of cranial nerves IX, X, and XI. Symptoms include dysphagia, hoarseness, loss of gag reflex on the ipsilateral side, and deviation of the uvula toward the normal side.


A lesion involving which of the following anatomical structures is most likely responsible for this patient's symptoms?
Опрос
  •   A. Cerebellopontine angle
  •   B. Foramen magnum
  •   C.Foramen ovale
  •   D.Foramen rotundum
  •   E. Hypoglossal canal
  •   F. Jugular foramen
541 голосов


A 67-year-old woman with a known history of lung cancer comes to the office due to hoarseness and
difficulty swallowing. She has no disturbances in vision or hearing. On examination, there is loss of the gag reflex on the left side; when the patient is prompted to say "ah," the uvula deviates to the right side.
a right lower lobe lung mass and several osteolytic rib lesions. MRI of the head also demonstrates multiple Her left shoulder is drooped and strength is reduced during left shoulder shrug testing. Chest x-ray shows
lesions consistent with metastasis.


Educational objective: Tay-Sachs disease is an autosomal recessive disorder caused by [3-hexosaminidase A deficiency, which results in GM2 ganglioside accumulation. Key clinical features include progressive neurodegeneration and a cherry-red macular spot. In contrast to patients with Niemann-Pick disease, those with Tay Sachs disease have no hepatosplenomegaly.


Accumulation of which of the following metabolites is most likely present in this patient's tissues?
Опрос
  •   A. Galactocerebroside
  •   B. Globotriaosylceramide
  •   C. Glucocerebroside
  •   D.Glycogen
  •   E. GM2 ganglioside
  •   F. Heparan sulfate
  •   G .Sphingomyelin
400 голосов


An 8-month-old girl is brought to the office for evaluation of irritability and regression of motor skills. Her birth was unremarkable and she appeared to develop normally, but she can no longer sit or roll over. Her parents have also noticed that she startles easily with loud noises. Head circumference measurement is consistent with macrocephaly. Bilateral funduscopic evaluation shows a bright red fovea centralis that is surrounded by a contrasting white macula. Peripheral vision is decreased. Abdominal examination is normal.




Educational objective: Neisseria meningitidis can cause sepsis and circulatory collapse in previously healthy young individuals. Lipooligosaccharide, a virulence factor in the pathogens outer membrane, is the major underlying cause of disease severity.


Which of the following microbial components is directly responsible for the severity of disease in this patient?
Опрос
  •   A. Capsular polysaccharide
  •   B. lmmunoglobulin protease
  •   C. Lipo-oligosaccharide
  •   D.Lipoteichoic acid
  •   E. Superantigen exotoxin
332 голосов


A 16-year-old girl is brought to the emergency department after she became unresponsive. Temperature is 39.7 C (103.5 F), blood pressure is 70/40 mm Hg, and pulse is 130/min and thready. There is a diffuse petechial and ecchymotic skin rash. Laboratory testing reveals leukocytosis with left shift and evidence of disseminated intravascular coagulation and multiorgan failure. Despite aggressive interventions, the patient dies several hours after admission. Autopsy reveals hemorrhagic necrosis of many internal organs, including the bilateral adrenal glands.


Educational objective: Amyotrophic lateral sclerosis (ALS) causes both upper and lower motor neuron lesions. Loss of neurons of the anterior horns of the spinal cord (LMN lesion) causes muscle weakness and atrophy. Demyelination of the lateral corticospinal tract (UMN lesion) leads to spasticity and hyperretlexia.


The patient most likely suffered from which of the following?
Опрос
  •   A. Amyotrophic lateral sclerosis
  •   B. Poliomyelitis
  •   C.Rabies
  •   D.Huntington disease
  •   E. Friedreich ataxia
  •   F. Vitamin 812 deficiency
343 голосов


A Caucasian male who suffers from a severe neurological disease dies of an overwhelming respiratory infection. Autopsy shows an atrophic precentral gyrus and thin anterior roots of the spinal cord. Light microscopy reveals a severe loss of neurons in the anterior horn of the spinal cord and in the hypoglossal and ambiguous cranial nerve nuclei; corticospinal tracts stain only faintly, indicating demyelinization.


Educational objective: Clostridium botulinum is a spore-forming, gram-positive, anaerobic bacillus that synthesizes botulinum toxin, which prevents the presynaptic release of acetylcholine from the nerve terminal at the neuromuscular junction. Botulinum toxin can be used to treat focal dystonia and other disorders of abnormal muscle contraction.


The substance administered to this patient is derived from bacteria that most likely demonstrate which of the following characteristics?
Опрос
  •   A.Antigenically hypervariable pili
  •   B.Antiphagocytic capsule
  •   C. lgG-binding outer membrane protein
  •   D. Intracellular polyphosphate granules
  •   E. Subterminal spore formation
  •   F. Type Ill secretion system
238 голосов


A 40-year-old woman is evaluated for neck pain that has gradually worsened over the past several months. The patient reports a pulling sensation in her neck that causes difficulty in keeping her head straight. She has had no trauma and has no other medical conditions. Physical examination shows a spastic and thickened sternocleidomastoid muscle causing head tilt. The patient is diagnosed with idiopathic torticollis. She is treated with injections of a bacterial product into the affected muscle, with significant relief of her symptoms.


Educational objective: Lacunar infarcts are small, ischemic infarcts (usually


This patient's condition is most likely caused by which of the following?
Опрос
  •   A. Cardiac embolism
  •   B. Carotid artery atherosclerosis
  •   C.Hypertensive arteriolar sclerosis
  •   D. Hypertensive encephalopathy
  •   E. Hypoxic encephalopathy
  •   F. Saccular aneurysm
263 голосов

Показано 20 последних публикаций.