A
GUIDE
Table of Contents
1. Cardiovascular & Hematology Essentials
2. Endocrine & Metabolic Mastery
3. Gastrointestinal & Hepatic Review
4. Genitourinary & Reproductive Health Deep Dive
5. Musculoskeletal System Fundamentals
6. Neurology & Mental Health Key Concepts
7. Dermatology Quick Reference
8. EENT (Eyes, Ears, Nose, Throat) High-Yield Points
9. Pediatrics & Obstetrics Critical Info
10. Infectious Diseases & Immunology
11.Pharmacology Principles & Pearls
12. Diagnostic Tests & Lab Value Snapshot
13. Professional Practice & Screening Guidelines
,1.Cardiovascular & Hematology Essentials
● Heart Murmurs: The Basics
○ Diastolic Murmurs:ALWAYS pathological.Requires further
workup.
○ Murmur Grading Scale (I-VI):
■ Grade I:Barely audible.
■ Grade II:Faint but audible.
■ Grade III:Clearly audible.
■ Grade IV:Audible with a palpable thrill(this isthefirst
grade a thrill appears).
■ Grade V:Audible with stethoscope edge barely touching
chest.
■ Grade VI:Audible with stethoscope off the chest.
● Systolic Murmurs: Key Differentiators
○ Mitral Regurgitation (MR):
■ Type:Holosystolic or Pansystolic.
■ Location:Best heard atapex (5th ICS MCL).
■ Radiation:Radiates to the axilla.
○ Aortic Stenosis (AS):
■ Type:Mid-systolic ejection.
■ Location:Best heard at2nd ICS Right Sternal Border.
■ Radiation:Radiates to the neck.
○ Mnemonic:MR. ASS(Mitral Regurgitation, Aortic Stenosis-
Systolic).
● Mitral Valve Prolapse (MVP):
, ○ Sound:Characterized by amid-systolic click, followedby a late
systolic murmur.
○ Treatment:Asymptomatic MVP requires no treatment.If palpitations
are present, treat withbeta-blockers.
● Extra Heart Sounds
○ S3 Heart Sound:
■ Timing:Early diastole.
■ Sound:"Kentucky" rhythm.
■ Significance:Indicatesheart failure (HF). Abnormalif >35
years old.
■ Auscultation:Best heard with thebellof the stethoscope.
○ S4 Heart Sound:
■ Timing:Late diastole.
■ Sound:"Tennessee" rhythm, also called "atrial kick/gallop."
■ Significance:IndicatesLeft Ventricular Hypertrophy(LVH)
or stiff ventricle.
● Jugular Venous Distension (JVD) Causes:
○ Tension pneumothorax
○ Right-sided heart failure
○ Cardiac tamponade
○ Cor pulmonale
○ Increased portal pressure (cirrhosis)
● Endocarditis: Classic Signs
○ Gradual onset of fever.
○ Hemorrhages on nail beds (splinter hemorrhages).
○ Painful raised red nodules (Osler's nodes)on fingers/toes.
○ Painless red spots (Janeway lesions)on palms andsoles.
, ● Peripheral Vascular Disease (PVD): Arterial vs. Venous
○ Peripheral Arterial Disease (PAD):
■ Pulses:Absent or diminished pulses.
■ Flow:Decreased blood flowdownstream.
■ Pain:Intermittent claudication(pain with exertion,relieved
by rest). Nocturnal pain relieved byloweringlegs.
■ Appearance:Dependent rubor, atrophy, shiny/hairless/cold
feet.
■ Diagnosis:Doppler ultrasound;Ankle-Brachial Index(ABI)
<0.9. Arteriography is definitive.
■ Treatment:Exercise (walking program), antiplatelet
medications (e.g., cilostazol [Pletal], pentoxifylline [Trental]).
○ Chronic Venous Insufficiency (CVI):
■ Flow:Decreased blood flowupwards(impaired venous
return).
■ Symptoms:Edema after prolonged standing, aching legs
relieved byelevation, night cramps.
■ Appearance:Brownish discoloration, coldness, venous
ulcers.
■ Treatment:Support stockings, leg elevation.
● Coarctation of the Aorta (COA):
○ Description:Congenital narrowing of the aorta.
○ Key Finding:Bounding radial/brachial pulses(upperextremities)
butweak/absent femoral pulses(lower extremities).
○ BP Discrepancy:Increased BP in arms, lower BP inlegs.
● Hypertension (HTN) Management:
○ Normal BP:<120/80 mmHg.