Random USMLE Facts volume 9-2

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Random USMLE Facts volume 9-2:

USMLE Facts 1 USMLE Facts 2 USMLE Facts 3 USMLE Facts 4 USMLE Facts 5
USMLE Facts 6 USMLE Facts 7 USMLE Facts 8 USMLE Facts 9 USMLE Facts 10

What causes urine to leak through a neonate's umbilicus?

Failure of the urachus to close; this structure is the median umbilical ligament in the adult.

Note: alcohol withdrawal or cocaine intoxication can cause hallucinations, vomiting, nausea, increased heart rate, and hypertension.

What is a chylous effusion?

It is an exudative pleural effusion (high lipid content); the fluid is lymphatic fluid. Chylous effusion can develop secondary to trauma or malignancy eg., lung cancer.

What type of reaction is serum sickness?

Type III hypersensitivity reaction.

Arnold-Chiari malformation is associated with that?


Parotid Gland:

parotid gland

In the above, what structure is being point to?

Parotid gland.

Notes on twins:

• Monozygotic twins: single fertilized cell splits during blastomere or blastocyst stage.
• Conjoined twins: Siamese twins result from incomplete splitting of the embryo.
• Dizygotic twins and fraternal twins: result from simultaneous double ovulation followed by fertilization by two sperm.

What is the genetic cause of Friedreich ataxia?

Trinucleotide repeat expansion.

What is a pyloromytomy?

Partial surgical incision through the pylorus (pyloromytomy) is curative of congenital hyperthropic pyloric stenosis.

What is barium enema used for?

Reverse intussusception in an infant.

In order to gain access into the right side of the lesser peritoneal sac, what must be incised to reach the head of the pancreas?

Gastrohepatic ligament.

What is the histopathology of a neuroblastoma?

Ganglion cells and primitive, small, round cells occasionally organized in rosettes, embedded in a fibrillary pink matrix.

What nerve lies lateral to the flexor digitorum?

Median nerve. A severed nerve may prevent opposition of the thumb and loss of sensation on the palmar surface of the thumb and the first two and a half fingers, as well as the tips of the same digits on the dorsal surface.

USMLE Facts 1 USMLE Facts 2 USMLE Facts 3 USMLE Facts 4 USMLE Facts 5
USMLE Facts 6 USMLE Facts 7 USMLE Facts 8 USMLE Facts 9 USMLE Facts 10

Additional Readings:

Random USMLE Facts

1. Random USMLE Facts volume 1-1
2. Random USMLE Facts volume 2-1
3. Random USMLE Facts volume 3-1
4. Random USMLE Facts volume 4-1
5. Random USMLE Facts volume 5-1
6. Random USMLE Facts volume 6-1
7. Random USMLE Facts volume 7-1
8. Random USMLE Facts volume 8-1
9. Random USMLE Facts volume 9-1
10. Random USMLE Facts volume 10-1
11. Random USMLE Facts volume 11-1
12. Random USMLE Facts volume 12-1

General and Systemic Examinations

1. General Examination for Internal Medicine
2. Jugular Venous Distention Workup
3. ER Chest Pain Workup
4. Format for Patient Presentation
5. Pulmonary Examination for Internal Medicine
6. Cardiac Examination for Internal Medicine
7. Abdominal Examination for Internal Medicine
8. Cranial Nerve Reflexes
9. Motor System Examination
10. Random Sensory System Facts
11. Random Stroke Facts

Medical Files & Presentations

1. USMLE Flashcards [Size: 1.9 MB; Format: MS Powerpoint]
2. Otitis Media in Children [Size: 5.4 MB; Format: MS Powerpoint]
3. Irritable Bowel Syndrome [Size: 170 kB; Format: MS Powerpoint]
4. Acid-Base Disturbance: Acidotic or Alkalotic? [Size: 427 kB; Format: PDF]
5. Thrombocytopenia [Size: 2.42 MB; Format: MS Powerpoint]
6. Are Face Transplants Ethical? [Size: 70.2 kB; Format: MS Powerpoint]

USMLE Step 2 CS Videos

1. Video of Cardiology Examination in a Clinical Setting
2. Video of Neurology Examination in a Clinical Setting
3. Video of Pulmonology Examination in a Clinical Setting
4. Video of Musculoskeletal Examination in a Clinical Setting
5. Video of Abdominal Examination in a Clinical Setting
6. Video of HEENT Examination in a Clinical Setting
7. Video and Description of Rinne Hearing Test
8. Video and Description of Weber Hearing Test

USMLE Laboratory (lab) Values

1. USMLE Blood Lab Values
2. USMLE Cerebrospinal Lab Values
3. USMLE Hematologic Lab Values
4. USMLE Sweat and Urine Lab Values

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Useful Medical Images & Diagrams (link opens in a new window)

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