HoldingOrders.com

Chief Complaint

Table of Contents

High Yield Topics

Emergent Conditions

Shock

  • Undifferentiated

  • Hypovolemic

    • Blood loss: Hemorrhage

    • Water/electrolyte loss: Vomiting, diarrhea, diuresis

    • Plasma loss: Burns

  • Cardiogenic/obstructive

  • Distributive: ↑ vasodilation/capillary permeability = ↓ distribution

    • Anaphylaxis

    • Sepsis

    • Myxedema/adrenal crisis

    • Neurogenic (↓ vascular tone)

Cardiovascular

Code Flowchart.jpg

Neurologic

Obstetric

  • Shoulder dystocia

  • Vaginal breech delivery

  • Postpartum hemorrhage

  • Preeclampsia with severe features

Pediatric

Emergency Department Presentations (Most to Least Common)

  • Respiratory distress

    • Upper respiratory (most common): Deviated nasal septum, allergic rhinitis, acute laryngitis, acute/chronic tonsillitis, streptococcal sore throat

    • Lower respiratory

      • Chief complaint: Cough, wheezing

      • Diagnosis: Influenza, asthma, acute bronchitis, bronchiectasis, pneumonia, aspiration pneumonitis, pneumothorax

  • Injury and poisoning

    • Injury per CHOP: Physical abuse, traumatic brain injury, burn, dental trauma, open long bone fracture, pelvic fracture, head trauma, laceration, spinal cord injury

    • Additional injury: Concussion, skull/maxillofacial fracture, ankle sprain, wrist sprain

  • Neurologic

    • Headache

    • Convulsion/seizure

    • Gait disturbance

  • Gastroenterological

    • Common

    • Life threatening: Adhesions, appendicitis, hemolytic uremic syndrome, intussusception, primary bacterial peritonitis

      • Neonate: Malrotation and midgut volvulus, necrotizing enterocolitis

      • < 5 years old: Foreign body ingestion, incarcerated hernia, Hirschsprung disease

      • > 5 years old: Trauma, myo/pericarditis, diabetic ketoacidosis, perforated ulcer

    • Surgical emergencies: Hypertrophic pyloric stenosis, appendicitis, Meckel's diverticulum, intussusception, malrotation, and midgut volvulus

  • Fever of unknown origin

  • Mental and substance abuse disorders

    • Behavioral health issues including suicidal ideation, aggressive behavior, mental health concerns, developmental/autism spectrum disorders

    • Cannabis use, alcohol use, opioid use

  • Genitourinary disorders

    • Urinary tract trauma, urinary tract infection, hydronephrosis, nephrolithiasis, glomerulonephritis, hemolytic uremic syndrome

    • Males: Inguinal hernia, priapism, hydrocele, scrotal/testicular pain (HoldingOrders, CHOP)

    • Females

  • Musculoskeletal disorders

  • Skin and subcutaneous tissue disorders

  • Endocrine disorders: Diabetes mellitus

  • Dehydration

References

Chronic Conditions

Treatment

Screening

Obstetrics

Pregnancy

Pregnancy Prevention/Termination

Labor

Neonatal and Infants

Conditions/Findings

Vitals/Lab Results

Pediatric

Vital Signs

Temperature

  • Fever/Hyperthermia

    • Infection: Rule out upper respiratory infection, pneumonia, UTI, cellulitis

    • Malignancy

    • Systemic rheumatic disease: Rheumatoid arthritis, vasculitis, etc.

  • Hypothermia

Heart rate

  • Tachycardia

  • Bradycardia

Respiratory rate

  • Tachypnea

  • Bradypnea

Blood Pressure

Labs and Imaging

Hematopoiesis_simple.png

WBC

Anemia

Microcytic

Hypersegmented neutrophil, i.e. ≥ 5 lobes present. Pathological and histological images courtesy of Ed Uthman.

Hypersegmented neutrophil, i.e. ≥ 5 lobes present. Pathological and histological images courtesy of Ed Uthman.

Normocytic

  • Hemolytic

    • Adult: Autoimmune hemolytic disease

      • Patients age > 40 years

      • Pathophysiology: Cold-reactive antibodies formed in response to EBV or mycoplasma infections

    • Pediatric

      • DDX: Sickle cell disease, spherocytosis, G6PD deficiency

      • Obtain CBC, corrected reticulocyte index, peripheral blood smear, +/- hemoglobin electrophoresis

  • Non-Hemolytic

Macrocytic

  • Megaloblastic anemia (hypersegmented neutrophils): B12/Folate deficiency

  • Non-megaloblastic anemia (neutrophils with < 5 lobes)

Platelets

BMP/CMP

Individual Values

  • Sodium: Hyponatremia, hypernatremia

  • Potassium

    • Hypokalemia

      • Common etiologies: Vomiting, diarrhea, bulimia nervosa

      • Less common etiologies: Dialysis/plasmapheresis, VIPoma

      • Medication-induced: Diuretics, laxatives, insulin, albuterol

    • Hyperkalemia (consider if K+ > 5.5, start if > 6)

      • Calcium gluconate 1000 mg (10 mL of 10% solution)

      • Albuterol nebulizer q4-6 hours

      • Regular insulin 10 u in 500 mL 10% dextrose solution

      • Potassium binder: 8.4 g qd (onset of action = 7 hours)

      • Consider nephrology consult

  • Chloride

  • Bicarbonate

    • Low

      • Unstable: Obtain CBC, CMP, serum lactate, ABG, UDS and consider beta-hydroxybutyrate in setting of hyperglycemia

      • Stable: Obtain CBC, CMP serum albumin and calculate anion gap (Na − [Cl + HCO3]); see acid-base disturbances for further information

  • BUN and Creatinine

  • Glucose

  • Elevated serum protein: Consider serum protein electrophoresis

    • Hypogammaglobulinemia: Indicates immunodeficiency

      • Primary: Congenital (pediatric)

      • Secondary: Metabolic (renal disease, DM), loss in urine/stool, malignancy, immunosuppression (HIV, Rx)

    • Hypergammaglobulinemia

      • M-protein negative: Liver disease, autoimmune disease, chronic infection, malignancy

      • M-spike positive: MGUS (no lytic lesions), multiple myeloma (lytic lesions), Waldenström’s macroglobulinemia (monoclonal IgM, Bence-Jones protein)

  • Calcium: Hypocalcemia, hypercalcemia

  • Liver enzymes (acute elevation)

    • Review risk factors: Recent travel, alcohol use, IV drug use, sexual history, medications. Discontinue offending agents (e.g. statins).

    • Review of systems: Ischemia risk (e.g. CAD, mesenteric ischemia), coagulopathy risk (e.g. previous DVT/PE), abdominal pain, jaundice

    • Obtain: Hepatitis A Ab/IgM, HBSAg, anti-HBs, anti-HBc, albumin, bilirubin, alkaline phosphatase (+/- GGT), PT, PTT, INR

  • Vitamin deficiencies

Value Patterns

Urinalysis

Other

Imaging

Source: Colorectal Cancer Screening and Surveillance per AAFP. Memory device: Tubular adenomas &lt; 10 mm divided by 2 (or fewer) polyps = 5 years.

Source: Colorectal Cancer Screening and Surveillance per AAFP. Memory device: Tubular adenomas < 10 mm divided by 2 (or fewer) polyps = 5 years.