Differential Diagnoses

General Symptoms:

Weight Loss

n  Causes may be GI, endocrine, chronic infections, malignancies, depression anorexia nervosa

n  Wt loss with high food intake: diabetes, hyperthyroidism, malabsorption or bulimia

Strength

n  Fatigue = sense of weariness or loss of energy

Some causes: depression, anxiety, endocrine, infections (mono), anemia

n  Weakness = loss of muscular power

n  Fever = abnormal increase in body temp

Shaking chills-body shivers, teeth chatter

Menopause = heat and sweating

Head

n  Headache = most important attribute is chronological pattern

Acute/Chronic/Progressive

Most common recurring headache = tension + migraine

Changing/progressively severe– tumor

Extremely severe– arachnoid hemorrhage or meningitis

Nausea and vomiting– migraine, brain tumors, subarachnoid

hemorrhage

Eyes

n  Blurring — high blood sugars

n  Sudden/gradual? Sudden– retinal detachment, vitreous hemorrhage

or occlusion of central retinal artery

n  Difficulty with close/far? Close– hyperopia (farsightedness)

presbyopia (aging vision), or Far — myopia (nearsightedness)

n  Visual field defect: partial/central/periphal/one side?

Slow central loss — nuclear cataract, macular degeneration

Peripheral loss — glaucoma

One-sided loss — hemianopsia and quadrantic defects

n  Moving specks — vitreous floaters

n  Flashing lights — vitreous detachment from retina

n  Pain, redness of eyes, tearing – read up on this topic

n  Diplopia (double vision): horizontal/vertical

Weakness/paralysis of extraocular muscles

Horizontal — CN III, VI

Vertical — CN III, IV

Ears

n  Pattern of hearing loss – central or conductive etioloty

n  Conductive/Sensorial loss?

Conductive-external or middle ear

Sensorial – inner ear ; Patient has trouble understanding speech

n  Tinnitus = perceived sound w/o external stimulus; increase w/ age

n  True vertigo = feels like being pulled

n  Earache (Pain) — external or middle ear; or referred from mouth, throat Nose and Sinuses

n  Rhinorrhea = nasal discharge; occurs with sneezing, watery eyes, itchiness of eyes, nose, throat — viral infections, allergic rhinitis

If with pain and face tenderness, headache, fever — Sinusitis

n  Epistaxis = nose bleed — trauma, inflammation, drying

Mouth, Throat, Neck

n  Bleeding gums — Gingivitis

n  Hoarseness = husky, rough, harsh voice — overuse or infection

Chronic — smoking, allergy

Enlarged lymph nodes — Pharyngitis

n  Enlarged thyroid (Goiter)

Breast

n  Pain/Discomfort/Lumps?

Lumps — cysts, benign tumors, cancers

Differentiation of breast nodules (see focuses lecture notes)

n  Nipple discharge?

Milky, bilateral — pregnancy, imbalance hormone

Non-milky, unilateral — local breast disease

Chest Pain

n  Myocardium — MI, angina pectoris

n  Aorta — Dissecting aneurysm

n  Trachea/large bronchi — Tracheobronchitis

n  Parietal pleura — Pleurisy, pericarditis

n  Esophagus — Reflux esophagitis, spasm

n  Chest wall (musculoskeletal + skin) — Costochondritis, herpes zoster

n  Anxiety most common cause of chest pain in kids

n  Ask patient to show and watch gestures:

Clenched fist over sternum — angina pectoris

Finger pointing to area of heart — noncardiac

Hand up and down epigastrium to neck — heartburn

n  Palpitations = unpleasant awareness of heartbeat

Persistent irregularity — atrial fibrillation

n  Selected heart rates and rhythms

Regular fast rate < 120/min — sinus tachycardia

n  Dyspnea = nonpainful, uncomfortable awareness of breathing inappropriate to circumstances — can only be reported by patient

Patient description: shortness of breath, smothering, can’t take

deep breath, deep sighs

n  Orthopnea = dyspnea when patient lying down, improves when sitting up

Quantified by number of pillows patient sleeps on or patient sleeps

sitting up — left ventricular failure, mitral stenosis, obstructive lung disease

n  Paroxysmal noctural dyspnea = sudden dyspnea + orthopnea that waken patient 1-2 hrs. after going to bed — left ventricular failure, mitral stenosis, asthmatic attack

n  Edema = excessive fluid in interstitial space — swelling from cardiovascular, rheumatologic, ir immunologic causes

Dependent edema = in lowest body part (feet, legs).  Puffy lids and tight rings (if edema elsewhere ) — renal disease or hypoalbuminemia

Enlarged wasteline — ascites = fluid in peritoneal cavity

n  Cough = reflex response to irritation of receptors in larynx, trachea

– left-sided heart failure

Sputum (phlegm) – volume, odor, color, consistency

Mucoid Sputum = translucent, white, gray

Purulent Sputum = yellow, green

Mucopurulent = combination

Helpful diagnostic symptoms: fever, chest pain, dyspnea,

orthopnea, wheezing

Hemoptysis = cough up blood– Cystic fibrosis

Blood in stomach darker than respiratory and mix with food (vomited, not coughed up)

GI Tract

n  Dysphagia = difficulty swallowing

Point to chest — esophageal disorder

Point to throat — problem with food transfer or esophageal disorder

Only with solid food — esophageal narrowing

Solid + Liquid food — esophageal muscle disorder

n  Odynophagia = pain with swallowing

Sharp, burning — mucosal inflammation — reflux esophagitis due to herpesvirus or Candida

Squeezing, cramping — muscular problem

n  Indigestion = distress with eating

Heartburn = burning/warmth retrosternally and may radiate from

epigastrium to neck — reflux gastric acid to esophagus

–Heavy meal, lying down

Severe — heart disease

Chronic — reflux esophagitis

Excessive Gas = frequent belching, abdominal bloating, flatus

– foods, intestinal lactase deficiency, irritable bowel

syndrome

Abdominal Pain

–Visceral Pain = hollow organs distended or contract

forcefully

Poorly localized, near midline

Gnawing, burning, cramping, aching

–Parietal Pain = originate in parietal peritoneum due to

inflammation. Steady, aching pain-more severe

and localized than visceral pain — patient usually

lie still

*Acute Appendicitis = visceral + parietal pain

periumbilical pain — right lower quandrant pain

–Referred Pain = felt in distant sites but at same spinal

level of

innervation — Duodenal or pancreatic origin-> Back

pain from biliary tree -> right shoulder or right

posterior chest

n  Appetite

Anorexia = loss of appetite

Nausea = sick to stomach

Retching = spasmodic movement of chest and diaphragm. Can lead to

Vomiting = forceful expulsion of gastric contents through mouth

*All three suggest GI disorders, diabetic acidosis, liver disease, anorexia nervosa/bulimia

n  Regurgitation = raise esophageal/gastric contents w/o nausea or retch

Hematemesis = red blood + brownish/blackish vomitus with “coffee ground” particles — duodenal/gastric ulcers

n  Stools Black — melena

Red blood — hematochezia

Obstipation = constipation with no fecal passage/gas — intestinal

obstruction

Diarrhea = increase frequency of stool passage-watery

Large diarrheal stools — small bowel or proximal colon

problem

Small stools — left colon or rectum

Steatorrhea= large, yellow/gray, greasy, foul-smelling, frothy

– malabsorption

Tenesmus = intense urge but no result — rectal problem

n  Jaundice (icterus) = yellow skin and eyes due to increased bilirubin

Mechanism: Increased bilirubin production

Decreased uptake of bilirubin by liver

Decreased ability of liver to conjugate bilirubin

Decreased excretion of bilirubin into bile

–Hepatocellular Jaundice = liver cell damage

–Cholestatic Jaundice = damage liver cells or

intrahepatic bile ducts

Impaired bilirubin excretion — bilirubin conjugated.

Causes : Viral hepatitis, cirrhosis, drug-induced cholestasis

Dark urine — impaired bilirubin excretion

Acholic stool — light color, gray — viral hepatitis

Itching Skin — cholestatic/obstructive jaundice

Risk factors for liver disease:

Hepatitis

Cirrhosis

Toxic liver damage

Gallbladder disease

Hereditary

Urinary Tract

n  Kidney Pain: near costovertebral angle — acute pyelonephritis

Can radiate to umbilicus. Visceral pain-dull, aching, steady

n  Ureteral Pain: colicky pain originating in costovertebral angle — lower

quadrant of abdomen — upper thigh — testicle/labium

–Obstruction of ureter by urinary stones

n  Bladder — suprapubic pain, dull, steady

n  Dysuria(?) = pain on urination — inflammation of bladder/urethra

Burning sensation — Cystitis, urethritis, stones, acute prostatitis

Female-internal burning — cystitis/urethritis

–external burning — vulvovaginitis

n  Urinary urgency = intense desire to void — bladder infection

Man with bladder obstruction:

–Hesitancy in starting urination

–Strain to void

–Reduced force of urinary stream

–Dribbling

Urethritis = pain on urination w/o frequency or urgency

n  Polyuria = increase in 24-hour urinary volume (3 L)

n  Urinary frequency = abnormally frequent voiding (no polyuria — bladder

Problem or flow impairment )

n  Nocturia = urinary frequency at night

n  Polydipsia = abnormally high intake of water, assoc w/ polyuria

n  Hematuria = blood in urine — detect by urinalysis

Gross hematuria = detect with eyes

Causes : cystitis, bladder malignancy, kidney stone

n  Urinary incontinence = involuntary loss of urine

–urge incontinence = detrusor contractions too strong

–stress incontinence = intraurethral pressure too low

–overflow incontinence = bladder enlarged due to obstruction

–functional incontinence = environmental

Genital System-Female

n  Girls in US: menarche begins between 9-16 years old

n  Factors determining menarche: nutrition, genetics, socioeconomic status

n  Amenorrhea = absence of periods

Primary amenorrhea = failure to initiate periods

Secondary amenorrhea = period stops after having begun — pregnancy,

Lactation, menopause, malnutrition, anorexia nervosa,

Hypothalamo-pituitary

n  Oligomenorrhea = infrequent periods

n  Polymenorrhea = abnormally frequent periods

n  Menorrhagia= increased amount/duration of flow

n  Postcoital bleeding = bleeding after intercouse — cercival cancer or polyps

n  Menopause = cessationof menses between ages 45-52 years

Postmenopausal bleeding = bleeding after 6 months w/o periods

– endometrial cancer (?)

Hot flashes and sweating

n  Dysmenorrhea = pain w/ menstruation: bearing down, aching, cramping in

Lower abdomen, pelvis.  PMS = 4-10 days before period:tension, mood swings, irritability, depression

n  Amenorrhea + heavy bleeding — threatened abortion or dysfunctional

uterine bleeding

n  Vulvovaginitis

Vaginal Discharge (Amount, color, consistency, odor)

itching

n  Sexual Dysfunction: base on phase of sexual response -desire, arousal, or

orgasm — health, lack of estrogen, medications, attitudes

Dyspareunia = pain on intercourse

Vaginismus = involuntary spasm of muscles around vaginal orifice

Makes intercourse painful

Genital System-Male

n  Penile Discharge: Color, consistency, amount — Penile urethritis

n  Sores/growths on penis, swelling/pain in scrotum — STDs

n  Infections via oral-penile transmission (i.e. oral sex) — Clamydia,

gonorrhea, syphilis, herpes

n  Sexual problem:

Desire Phase — psychogenic, medication, or medical problem

Arousal Phase — erectile disorder due to systemic or psychogenic

problem

Ejaculatory Phase/Orgasm — Premature ejaculation = young men

Reduced/absent ejaculation = middle age men

Ask about medication, surgery, neurological deficit

Peripheral Vascular System

n  Swelling of feet/legs — venous disorder

n  Coldness/numbness — arterial disorder

n  Local inflammation — superficial thrombophlebitis, lymphangitis,

cellulitis, erythema nodosum

n  Pallor of fingers -> Cyanosis -> Redness — Raynaud’s Disease/Phenomenon

n  Intermittent claudication = pattern of pain accompanying impairment of arterial flow — in older people — aching, cramping, numbness, severe fatigue — appears w/ walking and disappears w/ rest

Musculoskeletal System

n  Problems of joints:

Bursitis = inflammation of bursae

Tendonitis = inflammation of tendon

Tenosynovitis = inflammation of tendon sheaths

Sprains = stretching/tearing of ligaments

n  Pain in hip joints usually in groin or buttock — can be felt in anterior thigh or in knee – Hip pain near greater trochanter of femur — trochanteric bursitis

n  Pain in only one joint area — bursitis, tendinitis, monoarticular arthritis, or

Injury

n  Rheumatic fever/gonococcal arthritis — migratory pattern of spread

n  Rhematoid arthritis — progressive and symmetrical

n  Severe pain + swollen joint (no injury) — gouty or septic arthritis

In children — osteomyelitis

n  Associated symptoms:

– Other symptoms in involved joint — swelling, stiffness, limited

motion, tenderness, warmth, redness

Arthralgias = pain in joints without arthritis (redness, warmth)

Myalgias = pain in muscles

Gelling = stiffness after inactivity — degenerative joint disease -

last  few minutes

Stiffness in rheumatoid arthritis — 30 minutes +

Tenderness, warmth, redness in joint — acute gout, septic arthritis, Rheumatic fever

–Generalized symptoms — fever, chills, fatigue, anorexia, weight loss

Common in rheumatic fever; High fever + chills — infection

–Symptoms elsewhere in body giving important clues to nature of

problem

Skin:    butterfly rash on cheek — Systemic Lupus Erythematosus

Scaly rash + pitted nails of psoriasis — Psoriatic arthritis

Papules, pustules, vesicles on reddened bases on distal

extremities — Gonococcal arthritis

Expanding erythematous patch early in illness — Lyme

Disease

Hives — Serum sickness, drug reaction

Erosions or scales on penis + crusted scaling papules on

soles and palms — Reiter’s Syndrome = arthritis + urethritis + conjuctivitis

Maculopapular rash of rubella — arthritis of rubella

Clubbing of fingers — Hypertrophic osteoarthopathy

Preceding sore throat — Acute rheumatic fever or gonococcal arthritis

Diarrhea + abdominal pain — arthritis w/ ulcerative colitis

Low Back Pain

Numbness, weakness, tingling — nerve root involvement

Neck Pain

Nervous System

n  Loss of consciousness — vasodepressor syncope, hyperventilation, tonic-clonic seizure – in young people

n  Cardiac sycope — sudden onset, offset – older people

n  Sycope = sudden, temporary loss of consciousness that occurs

When blood flow to brain insufficent

Near-sycope (pre-sycope) = symptoms of impending faint– muscle

weakness, lightheadedness, without actual loss of consciousness

n  Tonic-clonic seizure (grand mal) = starts faster, lasts longer, can involve injury and incontinence, slower recovery Bilateral, distal weakness — polyneuropathy

Bilateral proximal weakness — myopathy

Weakness w/ repeated effort-improve w/ rest — myasthenia gravis

Involuntary movements (tremors)

n  Paresthesias = sensations w/o obvious stimulus – prickling, tingling,

warmth, coldness, pressure (leg goes to sleep-nerve compression)

n  Dysesthesias = distorted sensations in response to stimulus, can last longer than stimulus (light touch perceive as burning)

Loss of sensation, paresthesias, dysesthesias — involve peripheral

nerves,

sensory roots, spinal cord

Paresthesias in hand and mouth — hyperventilation

n  Restless Legs Syndrome = develops at rest, urge to move about– relieve by walking

Hematologic System

n  Congenital bleeding disorder — spontaneous bleeding, common in males

n  Petechiae in skin + mucous membraine + small bruises — platelet disorders

Large bruises, hematomas = mass of extravasated blood, hemarthroses =       bood in joints — clotting disorders

n  Spontaneous bleeding, bleeding w/ minor trauma — general bleeding

disorder

n  Possible deficiency in Vit C/K — diet, malabsorption

Endocrine System

n  Obesity, weakness, fatigue, ankle edema, decreased/no menstrual periods –

Cushing’s Syndrome (adrenal cortical hyperfunction)

n  Weakness, weight loss, nausea, vomiting, darken skin, postural hypotension — Addison’s Syndrome (adrenal insufficiency)

n  Diabetes mellitus — polyuria, polydipsia, polyphagia, weakness, fatigue, weight loss, blurred vision

n  Cold intolerance, decreased sweating — Hypothyroidism

n  Episodic sweating and heat intolerance — menopause

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