Random USMLE Facts volume 12-2

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Random USMLE Facts volume 12-2:

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 is MIF?

Mullerian inhibiting factor = MIF = "male maker."

In a population, if the incidence of a disease is 1/x, what is the predicted incidence of heterozygous carriers with that disease?

Square root of 1/x.

How much ATP is yielded from the conversion of glucose to 2 pyruvates under anaerobic conditions?

2 ATP/glucose.

How does arsenic affect the above reaction?

Arsenic causes loss of 2 ATP molecules / glucose, causing the overall production of 0 ATP/glucose.

Fluoroquinolones block DNA gyrase. What is the function of DNA gyrase?

Introduce negative supercoils into DNA to stabilize an underwound DNA helix.

What does sarcoidosis do to elasticity and compliance?

Increase and decrease, respectively.

What is a cardiac complication of tuberous sclerosis?


What happens when Auer rods are released into the blood stream?


What are the borders of a direct inguinal hernia (passes through deep inguinal ring)?

• Inferior (floor): inguinal ligament.
• Superior (roof): internal abdominal oblique and transverse abdominus muscles.
• Anterior: aponeurosis.

What happens to the pancreas in cystic fibrosis?

Pancreatitis due to reduced secretion of fluid into the pancreatic ducts.

What are some findings and causes of Hantavirus pulmonary syndrome?

Infection begins through inhalation of aerosolized secretions from common deer mouse. Findings include respiratory paralysis due to rapid progression to adult respiratory distress syndrome.

Which GI developmental anomaly presents with infant projectile bilious (contains bile) vomiting and intrauterine polyhydramnios?

Annular pancreas due to ventral bud malformation; annular pancreas is also called bifid ventral pancreatic bud.

What is the mechanism of action of sumatriptan?

5HT1D/1B agonist.

Pancreatic Pseudocyst:

pancreatic pseudocyst

ABOVE: pancreatic pseudocyst due to alcohol abuse; liquefactive necrosis surrounded by fibrous tissue. Rupture may lead to intestinal hemorrhage.

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

Medical Images

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

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