Random USMLE Facts volume 5-3

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Random USMLE Facts volume 5-3:

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 stain is used to confirm mycobacterium?

See: Notes on Mycobacterium

What factors mediate cachexia?

TNF-alpha and other cytokines.

What is seen on histological examination of a malignant skin tumor?

Palisading nuclei.

What looks like a "cylindrical white worm?"

Ascaris lumbricoides (round worm).

What happens to right ventricular end-diastolic volume and right ventricular stroke volume during deep respiration?

Increases; the heart rate also increases. However, the left ventricular end-diastolic volume decreases.

What artery is compressed when the femur is fractured immediately proximal to the femoral condyles?

Since a supracondylar fracture would occur, the popliteal artery wound be fractured.

What infections does S. bovis cause?

Endocarditis and carcinoma of the colon.

How is salt excreted?

95% of salt consumed is excreted by the kidneys; the 5% is secreted through sweat and feces.

What is the difference between tuberculoid and lepromatous leprosy?

Tuberculoid leprosy does not cause disfiguration and affects mainly the cooler parts of the body - nose, ears, etc. Lepromatous leprosy is more severe and causes disfiguration; it occurs when the wrong T-helper cell is activated. See: Notes on Mycobacterium

Examples of:

• Permanent cells: neurons in adult.
• Labile (continuously dividing cells): epithelia of body surface, GI tract, and urinary tract.
• Stable (quiescent) cells: cells of glandular organs.

What renal complication occurs in diabetes?

Diabetic glomerulopathy. PAS+ structures are found; hyaline masses seen. See: Notes on Kidney Disorders

What is one difference between ventricullar fibrillation and ventricullar tachycardia?

QRS complex is not recognizable in V-fibrillation, but occurs at an accelerated in V-tachycardia. Remember, fibrillation is always deadly.

What causes cystitis in prostatic hyperplasia?

E. coli.

Type 1 vs Type 2 diabetes

Type 1 diabetes: hyperglycemia and no hyperinsulinemia.
Type 2 diabetes: hyperglycemia and hyperinsulinemia.

NOTE: all filtered glucose is absorbed.

What type of cancer causes myasthenia gravis?

Thymoma or bronchogenic carcinoma; the resultant effect is myasthenia syndrome.

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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