Random USMLE Facts volume 10-9

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Random USMLE Facts volume 10-9:

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

Autonomic Receptors

autonomic receptors

Describe HIV as it passes from the mother to the infant:

• A newborn infant is going to have IgG antibodies from the mother.
• This means that the mother has been infected with HIV.
• If mother has passed antibodies to the infant, doesn't always mean that the infant has been infected.
• ELISA and western blot cannot be used in infants younger than 18 months.

What are some tests used for HIV diagnosis?

• Screening: ELISA or latex particle agglutination; P24.
• Confirmation: serologic - Western blot or immunofluorescence.
• Detection of virus in blood: RT-PCR (used to diagnose a newborn with HIV).
• Early marker for infection: P24 antigen.
• Evaluate progression of the disease: CD4:CD8 T-cell ratio using flow cytometry.

Why does hypertension develop in the upper body in coarctation of the aorta?

Due to increased concentration of angiotensin II.

Lovastatin inhibits which enzyme?

Hydroxymethyl glutaryl-CoA reductase (NADPH).

What is dimercaprol used for?

Mercury poisoning.

What is edentate calcium disodium (CaNa2-EDTA) used for?

Lead poisoning.

How do Hfr donor bacteria transfer genes?

Hfr donor bacteria can transfer genes to F- recipient cells, and the order of transfer is from oriT toward tra operon. Note that the tra operon is never transferred to the recipient and genes closest to the oriT are most likely to be successfully transferred, and those farthest away are least likely to be transferred.

Chronic obstructive pulmonary disease (COPD):

copd

ABOVE: what does the dashed curve most likely represent?

Emphysema (COPD); ending absolute lung volume is very high.

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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