Toronto Notes Flashcards
Clinical features of Familial Combined Hypercholesterolemia
Premature coronary heart disease, xanthelasma, and obesity
Risk factors for Type 1 diabetes mellitus
Personal history of other autoimmune diseases including Graves’ disease, myasthenia gravis, autoimmune thyroid disease, celiac disease, and pernicious anemia<br></br>Family history of autoimmune diseases
Screening for Macrovascular complications of diabetes
A1c every 3 mo<br></br>BP monitoring<br></br>Lipid profile every 1-3 yr<br></br>Resting ECG every 3-5 yr for high-risk patients
Etiology of Type 2 Diabetes Mellitus
Pancreas does not produce enough insulin or when the body does not effectively use the insulin that is produced
Clinical features of autonomic neuropathy
Postural hypotension<br></br>Tachycardia<br></br>Decreased cardiovascular response to valsalva maneuver<br></br>Gastroparesis<br></br>Alternating diarrhea and constipation<br></br>Urinary retention and erectile dysfunction
Osteoporosis is an age-related disease characterized by:
Decreased bone mass and increased susceptibility to fractures
The 5 Ps of the sexual history:
Partners<br></br>Practices<br></br>Protection<br></br>Past history of STIs<br></br>Pregnancy prevention
Sinusitis often presents with PODS symptoms:
Facial pain or fullness<br></br>Nasal obstruction<br></br>Postnatal discharge or purulence<br></br>Changes in smell
Sleep apnea is diagnosed using nocturnal polysomnography and first-line treatment is:
Continuous positive airway pressure (CPAP)
Group A beta-hemolytic Streptococcus is the most common bacterial cause of:
Sore throat (pharyngitis)
List the three categories of benign breast lesions:
Non-proliferative<br></br>Proliferative without atypia<br></br>Typical hyperplasia
Which finding on mammogram is pathognomonic for fat necrosis:
Oil cysts
Which type of hemorrhoids are associated with painless BRBPR, rectal fullness or discomfort, and mucus discharge:
Internal hemorrhoids
Characteristic finding of sigmoid volvulus on AXR:
Coffee-bean sign
Surgical emergencies focused history:
AMPLE:<br></br>Allergies<br></br>Medications<br></br>Past medical/surgical history (including anesthesia and bleeding disorders)<br></br>Last meal<br></br>Events (history of presenting illness)
Preoperative stress dose coverage:
For patients with primary adrenal insufficiency (e.g. Addison’s disease) or secondary adrenal insufficiency (e.g. glucocorticoid use)
Postoperative fever:
Inflammatory physiological stress (non infectious, POD#1)<br></br>Atelectasis (POD#1-2)<br></br>Early necrotizing fasciitis (POD#1-2)<br></br>Infectious (POD#3-7)<br></br>Abscess/DVT/drug fever (POD#8+)
Approach to critically ill surgical patient:
ABCs<br></br>IV 2 large bore IVs NS wide open<br></br>Monitors (O2 sat, ECG, BP)<br></br>Foley catheter<br></br>Investigations (bloodwork) +/- NG tube Imaging when stable
Patient risk factors surgical site infections:
Age<br></br>DM<br></br>Steroids<br></br>Immunosuppression<br></br>Smoking<br></br>Obesity<br></br>Burn<br></br>Malnutrition<br></br>Patient with other infections<br></br>Traumatic wound<br></br>Radiation<br></br>Chemotherapy
Mediastinum is bounded by:
Thoracic inlet<br></br>Diaphragm<br></br>Sternum<br></br>Vertebral bodies<br></br>Pleura
6Ss of SSC:
Smoking<br></br>Spirits (alcohol)<br></br>Seeds (beetel nut)<br></br>Scalding (hot liquid)<br></br>Strictures<br></br>Sack (diverticula)
Lung cancer prevention:
Smoking cessation<br></br>Avoidance of exposures<br></br>Early detection
Most common bariatric surgery for combination malabsorptive and restrictive:
Laparoscopic Roux-en-Y gastric bypass
Lung tumours classified as:
Primary or secondary, benign or malignant, endobronchial or parenchymal
Contraindications to Liver Transplantation:
Active alcohol/substance use<br></br>Extrahepatic malignancy within 5 yrs<br></br>Advanced cardiopulmonary disease<br></br>Active uncontrolled infection
Define Cholelithiasis:
The presence of stones in the gall bladder
Cholelithiasis Risk Factors for Cholesterol Stones:
Obesity<br></br>Increasing age<br></br>Female sex (esp females<50 years)<br></br>Estrogens (female, multipariry, OCPs)<br></br>Impaired gallbladder emptying (starvation, TPN, DM)<br></br>Rapid weight loss
Cholelithiasis Risk Factors for Pigment Stones:
Cirrhosis<br></br>Chronic hemolysis<br></br>Biliary stasis<br></br>Terminal ileal resection/disease (Crohn’s disease)
Cholelithiasis Protective Factors:
Statins<br></br>Physical Activity<br></br>Vitamin C<br></br>Poly- and Monounsaturated Fats/Nuts<br></br>Coffee
Define Acute Cholecystitis:
Inflammation of gallbladder resulting from sustained gallstone impaction in cystic duct or Hartmann’s pouch
Define Choledocholithiasis:
Stones in the common bile duct
Define Acute Cholangitis:
Obstruction of common bile duct leading to biliary stasis, bacterial overgrowth, suppuration, and biliary sepsis
Common causes of constipation in older adults:
Primary impaired colonic and anorectal function<br></br>Drugs<br></br>Diet<br></br>Colo-anorectal disorders (cancer, masses, stenosis, strictures)<br></br>Neurologic (stroke, dementia, Parkinson’s disease, autonomic neuropathy)<br></br>Psychiatric (depression, anxiety)
Transient causes of incontinence:
(DIAPERS) <br></br>Delirium<br></br>Infection<br></br>Atrophic urethritis/vaginitis<br></br>Pharmaceuticals<br></br>Excessive urine output<br></br>Restricted Mobility<br></br>Stool impaction
Components of delirium prevention:
Orient patient<br></br>Provide eyewear and hearing aids if needed<br></br>Mobilization of patient<br></br>Improve sleep quality<br></br>Medication reconciliation<br></br>Adequate nutrition & hydration
Risk factors for elder abuse:
Financial exploitation<br></br>Physical signs (e.g. bruising)<br></br>Delay in seeking medical attention<br></br>Disparities in histories<br></br>Lack of close family ties<br></br>Dementia<br></br>Recent deterioration in health<br></br>Family hx of violence
Key items to elicit for fall history:
(SPLATT) <br></br>Symptoms<br></br>Previous falls<br></br>Location of falls<br></br>Activity at the time of fall<br></br>Time of fall<br></br>Trauma
Investigations for falls:
CGA<br></br>CBC<br></br>Electrolytes<br></br>BUN<br></br>Creatinine<br></br>Glucose<br></br>Ca2+<br></br>TSH<br></br>Vitamin B12<br></br>Urinalysis<br></br>Cardiac enzymes<br></br>ECG<br></br>CT head (as directed by history and physical)<br></br>Coagulation profile<br></br>DEXA if >65y
Components of a Comprehensive Geriatric Assessment for management of frailty:
Past medical/surgical history<br></br>Social history<br></br>Functional history<br></br>Physical assessment<br></br>Geriatric review of systems (cognition, mood/mental health, falls, sleep, pain, nutrition, continence) <br></br>Polypharmacy
Key factors to consider in driving competency in older adults
(SAFEDRIVE): <br></br>Safety record<br></br>Attention (e.g. concentration lapses, episodes of disorientation)<br></br>Family observations<br></br>Ethanol abuse<br></br>Drugs<br></br>Reaction time<br></br>Intellectual impairment<br></br>Vision/Visuospatial function<br></br>Executive functions (e.g. planning, decision-making, self-monitoring behaviours)
Pharmacokinetic changes in the elderly (absorption, distribution, metabolism, elimination):
No significant changes to absorption<br></br>Increased distribution of lipophilic drugs<br></br>Decreased distribution of hydrophilic drugs<br></br>Increased binding of basic drugs<br></br>Decreased binding of acidic drugs<br></br>Reduced phase I reactions by liver<br></br>Reduced renal elimination of drugs
Risk factors for polypharmacy:
Patient level: Age, female sex, cognitive impairment, frailty, mental health conditions, multiple chronic conditions, lack of primary care physician, residing in LTC, use of multiple pharmacies<br></br>Systems-level: Multiple prescribers, poor documental systems, automated refill systems/lack of systematic medication review
Principles for Prescribing in the Elderly:
Caution/compliance<br></br>Age (adjust dosage for age)<br></br>Review regimen regularly<br></br>Educate<br></br>Discontinue unnecessary medications
Etiologies of disseminated intravascular coagulation:
Obstetric complications<br></br>Malignancy<br></br>Infection<br></br>Trauma<br></br>Shock
Vitamin K dependent factors:
X<br></br>IX<br></br>VII<br></br>II<br></br>Protein C<br></br>Protein S
Heparin therapy is monitored with:
aPTT
Clinical features of DVT:
Unilateral leg swelling<br></br>Erythema<br></br>Warmth<br></br>Tenderness<br></br>Palpable cord
Most useful test to rule out DVT (in the context of low pre-test probability):
D-dimer
Initial Investigations for Fever in a returned traveller:
Malaria smears x 3<br></br>Blood C&S<br></br>Routine (CBC & differential, liver enzymes, electrolytes, Cr)<br></br>Urinalysis (+/1 urine C&S)
Risk of transmission after needle stick exposure to blood/infectious fluid (HPB, HPC, HIV):<br></br><br></br>Risk of HIV transmission after mucus membrane exposure:
Hepatitis B (1/3), Hepatitis C (1/30), HIV (1/300). <br></br><br></br>0.09%
Diagnosis of active TB (4 main components):
1) CXR <br></br>2) Sputum for direct acid-fast smear <br></br>3) Mycobacterial culture & DST <br></br>4) NAAT
Causes of Nosocomial FUO (BCDE):
Bacterial and fungal infections of Resp tract & surgical sites<br></br>Catheters<br></br>Drugs<br></br>Emboli
Drugs that may cause fever:
Antimicrobials<br></br>Antihypertensives<br></br>Anti-epileptics<br></br>Anti-arrhythmics<br></br>Anti-inflammatories<br></br>Anti-thrombotics<br></br>Anti-histamines<br></br>Anti-thyroid
Causes of anion gap metabolic acidosis:
“MUDPILES CAT”<br></br>Methanol<br></br>Uremia<br></br>Diabetic Ketoacidosis<br></br>Paraldehyde<br></br>Isopropyl alcohol/iron/ibuprofen/Indomethacin<br></br>Lactic Acidosis<br></br>Ethylene Glycol<br></br>Salicylates<br></br>Cyanide/Carbon monoxide<br></br>Alcoholic ketoacidosis<br></br>Toluene
What is Kussmaul breathing a feature of?
Metabolic acidosis
What are the general steps in managing hyperkalemia?
a) Stabilize the myocardium (Calcium salts)<br></br>b) Shift potassium into cells (insulin and IV dextrose)<br></br>c) Enhance potassium excretion (loop diuretics vs. sodium polystyrene sulfonate)
What is a potential complication of rapid correction of hyponatremia?
Osmotic demyelination (of pontine and extrapontine neurons, which may be irreversible)
What is a good framework for thinking about the differential diagnoses of acute kidney injury?
- Prerenal (e.g. hypovolemia, cardiac performance, NSAIDs/ACEi/ARBs) <br></br>- Renal (e.g. vasculitis, glomerulonephritis, acute interstitial nephritis, acute tubular necrosis) <br></br>- Postrenal (e.g. obstructing calculi, ureteric stricture, neuropathy)
What are the indications for dialysis?
Think: “AEIOU” <br></br>Acidosis <br></br>Electrolyte imbalance (K+) <br></br>Intoxication (AKI) <br></br>Overload (fluid) <br></br>Uremia (encephalopathy, pericarditis, urea >35-50 mM)
What are the features of Nephritic Syndrome?
Think: “PHAROH” <br></br>Proteinuria <br></br>Hematuria <br></br>Azotemia <br></br>RBC casts <br></br>Oliguria <br></br>HTN
Describe the presentation of Nephrotic Syndrome?
Think: “HELP” <br></br>Hypoalbuminemia <br></br>Edema <br></br>Lipid abnormalities <br></br>Proteinuria
What are the major complications and management principles of CKD? Think of the NEPHRON acronym.
N - Low-nitrogen diet <br></br>E - Electrolytes: monitor K+ <br></br>P - pH: metabolic acidosis <br></br>H - HTN <br></br>R - RBCs: manage anemia with erythropoietin <br></br>O - Osteodystrophy: give calcium between meals (to increase Ca2+) and calcium with meals (to bind and decrease PO43-) <br></br>N - Nephrotoxins: avoid nephrotoxic drugs (ASA, gentamicin) and adjust doses of renally excreted medications
What are the extrarenal manifestations of PKD?
Hepatic cysts <br></br>Mitral valve prolapse <br></br>Cerebral aneurysms <br></br>Diverticulosis
Functions of the facial nerve “Ears, Tears, Face, Taste”:
Ears: stapedius muscle, sensory around concha of auricle, EAC, and TM. <br></br>Tears: lacrimation and salivation. <br></br>Face: muscles of facial expression. <br></br>Taste: anterior 2/3 of tongue
Findings suggesting of central vertigo:
Acute onset<br></br>Continuous<br></br>Normal head impulse test<br></br>Multidirectional nystagmus<br></br>Skew deviation present
5 “D” of Vertebrobasilar insufficiency:
Drop attacks<br></br>Diplopia<br></br>Dysarthria<br></br>Dizziness<br></br>Dysphagia
Order of the Neural Pathway of hearing
“E COLI”: <br></br>Eighth cranial nerve<br></br>Cochlear nucleus<br></br>superior Olivary nucleus<br></br>Lateral lemniscus<br></br>Inferior colliculus
Signs of BPPV seen with Dix-Hallpike Maneuver:
Latency ~20 seconds<br></br>Crescendo/decrescendo vertigo lasting ~20 seconds<br></br>Geotropic rotary nystagmus (required)<br></br>Reversal upon sitting up<br></br>Fatigability
Diagnostic criteria for Meniere’s disease:
All three of <br></br>1) Two spontaneous episodes of rotational vertigo > 20 min. <br></br>2) Audiometric confirmation SNHL (often low frequency). <br></br>3) Tinnitus/aural fullness
Syringing for cerumen impaction, indications:
Totally occlusive cerumen with pain<br></br>Decreased hearing<br></br>Tinnitus
Syringing for cerumen impaction, contraindications:
Active infection<br></br>Previous ear surgery<br></br>OOnly hearing ear<br></br>TM perforation
Syringing for cerumen impaction, complications:
OE, OM, TM perforation<br></br>Trauma<br></br>Pain<br></br>Vertigo<br></br>Tinnitus
Classic triad of mastoiditis:
Otorrhea<br></br>Tenderness to pressure over the mastoid<br></br>Retroarticular swelling with protruding ear
Common signs of Basilar Skull Fractures:
Battle’s sign (bruising over mastoid)<br></br>Racoon eyes<br></br>CSF rhinorrhea/otorrhea<br></br>CN involvement (CNV – facial numbness, CNVI – nystagmus, CNVII – facial palsy)
Major symptoms of acute bacterial rhinosinusitis
(PODS, at least 2 with 1 being O or D): <br></br>facial Pain/Pressure/fullness<br></br>nasal Obstruction<br></br>nasal Discharge<br></br>hyposmia/anosmia (Smell)
What is the most common congenital neck mass found in children?:
Thyroglossal duct cysts
Risk factors for head and neck malignancy include:
Smoking<br></br>Alcohol use<br></br>Radiation to the head and neck<br></br>Oral HPV exposure<br></br>Personal history of malignancy<br></br>Family history of malignancy
5 Ps of papillary thyroid carcinoma:
Popular (most common)<br></br>Palpable lymph nodes<br></br>Positive I131 uptake<br></br>Positive prognosis (98% 10 yr survival) <br></br>Postoperative I131 scan guides further treatment
4 Fs of Follicular thyroid carcinoma:
Far away metastases<br></br>Females (3:1 ratio)<br></br>not FNA (cannot be diagnosed with FNA)<br></br>Favourable prognosis (92% 10 year survival)
Common clinical features of a peritonsillar abscess, the Quinsy Triad:
Trismus<br></br>Uvular deviation<br></br>Dysphonia (“hot potato voice”)
Signs of croup, the 3 Ss:
Stridor<br></br>Subglottic swelling<br></br>Seal bark cough
Lab results for ITP:
Thrombocytopenia with normal RBC, WBC
Three types of leukemia in children, and the most common:
ALL<br></br>AML<br></br>CML<br></br>ALL is the most common
Associated congenital abnormalities with Wilms Tumour:
WAGR syndrome:<br></br>Wilms tumour<br></br>Aniridia<br></br>Genitourinary anomalies<br></br>mental Retardation
Treatment for bacterial meningitis
Emergent empiric antibiotic therapy based on age (age ≤28 d: ampicillin + cefotaxime, age 29 d-3 mo: ceftriaxone/cefotaxime + vancomycin ± ampicillin, age >3 mo: ceftriaxone + vancomycin). Add ampicillin IV to the above treatments if risk factors for infection with L. monocytogenes present: age >50, alcoholism, immunocompromised
Five stages of rabies
1) incubation period<div>2) prodrome</div><div>3) acute neurologic syndrome</div><div>4) coma</div><div>5) death</div>
Treatment for pulmonary tuberculosis
RIPE - rifampin + INH + pyrazinamide + ethambutol x 2 mo (initiation phase), then INH + rifampin x 4 mo in fully susceptible TB (continuation phase), total 6 mo.
Typical causes of community acquired pneumonia
Steptococcus pneumoniae<div>Moraxella catarrhalis</div><div>Haemophilus influenzae</div><div>Staphylococcus aureus</div>
Two most common causative organisms of cellulitis
Beta-hemolytic streptococci most commonly group A Streptococcus. Staphylococcus aureus is a notable but less common cause.
Early clinical features of necrotizing fasciitis
Pain out of proportion to clinical findings, edema ± crepitus, rapid spread of infection, systemic symptoms
Common infectious causes of oral lesions
Candidiasis, gonococcal infection, HSV
What is the acronym to remember the clinical features of infective endocarditis
FROM JANE (Fever Roth’s spots Osler’s nodes Murmur Janeway lesions Anemia Nail-bed hemorrhages Emboli)
Causes of gynecomastia
(DOC TECH): Drugs (esp. anti-androgens, i.e., spironolactone), Other, Congenital (Klinefelter syndrome), Tumour (esp. germ cell tumours), Endocrine (hyperthyroidism), CHronic disease (cirrhosis, CKD)
Drugs that cause gynecomastia
(DISCKO): Digoxin, Isoniazid, Spironolactone, Cimetidine, Ketoconazole, Oestrogen/anti-testosterone
Definition of lead-time bias
overestimation of survival time ‘from diagnosis’ when the estimate is made from the time of screening, instead of the later time when the disease would have been diagnosed without screening
Definition of length-time bias
overestimation of the survival time due to screening at one time point including more stable cases than aggressive cases of disease, which may have shorter survival times
Definition of Berkson’s bias
occurs in a case-control study using hospitalized controls, as they may not be a representative sample of the population due to the complexity that led to their hospital admission
Diagnostic criteria for behavioural variant FTD
at least 3/5 of the following symptoms must be present and persistent/recurrent: behavioural disinhibition; apathy or inertia; loss of sympathy or empathy; preservative, stereotyped, or compulsive/ritualistic behaviour; hyperorality and dietary changes
Key Parkinsonian features
(TRAP): Tremor (resting); Rigidity; Akinesia/bradykinesia; Postural instability
Most common location of saccular aneurysms
anterior communicating artery (Acom) (30%)
Etiology of most epidural hematomas
rupture of middle meningeal artery (85%)
Disc herniations impinge the nerve root at the level above/below the interspace?
below
Cystic cavitation of the spinal cord
Syrinx
Risk factors for Saccular Aneurysms
(SHAE): Smoking, HTN, Adult Polycystic Kidney Disease, Ehlers-Danlos Syndrome
The ABCDEs of Melanoma
Asymmetry, Border (irregular and/or indistinct), Colour (varied), Diameter (increasing or >6 mm), Enlargement, elevation, evolution (i.e. change in colour, size, or shape)
Differential diagnosis of hidradenitis suppurativa
folliculitis, furuncles, carbuncles, acne vulgaris, Crohn’s disease, granuloma inguinale, pyoderma gangrenosum
Requirements for a diagnosis of drug reaction
- Temporal relation<div>2. Recognized response</div><div>3. Improvement after drug withdrawal</div><div>4. Recurrence on re-challenge with the drug</div>
Drug Hypersensitivity Syndrome Triad
Fever<div>Exanthematous eruption</div><div>Internal organ involvement</div>
Differential diagnosis for Urticaria
(DAM HIVES): drugs/foods, allergic, malignancy, hereditary, infection, vasculitis, emotions, stings