OnlineMedEd Shared "Hypersensitivity Reactions" - 18 Picmonics
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Hypersensitivity Reactions
Hypersensitivity Type I
- Previous Antigen Exposure
- Immediate Reaction
- IgE Cross-linking
- Presensitized Mast Cells
- Histamine Release
- Vasodilation
- Anaphylaxis
- Allergies
- Treatment
- Epinephrine
1 min
Hypersensitivity Type II
- Cytotoxic
- IgM or IgG antibody-mediated
- Membrane Attack Complex (MAC)
- Mechanism
- Opsonization
- Complement Activation
- NK Cells
- Testing
- Direct Coombs test
- Indirect Coombs Test
1 min
Hypersensitivity Type III
- Immune Complex
- Antigen-antibody (IgG) complex activates complement
- Neutrophils release lysozomal enzymes
- Examples
- Arthus Reaction
- Serum Sickness
- Systemic Lupus Erythematosus (SLE)
1 min
Hypersensitivity Type IV
- Delayed-Type Hypersensitivity
- T Cell Mediated
- Antibody Independant
- Macrophages Activated
- Examples
- Transplant Rejection
- PPD Skin Test
- Contact Dermatitis
1 min
Anaphylaxis Intervention
- Intervention
- Assess Airway and Oxygen Needs
- Reassure Patient with Anxiety
- Supine Position
- Methylprednisolone (Solu-medrol)
- Epinephrine
- Diphenhydramine (Benadryl)
- Medical Alert Bracelet
2 mins
Anti-glomerular Basement Membrane Antibodies
- Glomerulonephritis
- Goodpasture's Disease
- Linear immunofluorescence
- Hemoptysis
- Hematuria
1 min
Hemolytic Uremic Syndrome (HUS)
- Children
- Pathophysiology
- Preceded by Acute Diarrheal Illness
- Endothelial Damage
- Classic Triad of Symptoms
- Microangiopathic Hemolytic Anemia (MAHA)
- Thrombocytopenia
- Renal Failure
- Labs
- Helmet cells
- LDH
- Treatment
- Dialysis
- Supportive
2 mins
Graves' Disease Characteristics
- Women 20-40 years old
- Pathophysiology
- Anti-TSH Receptor Antibodies
- Symptoms
- Ophthalmopathy
- Exophthalmos
- Hyperthyroidism
- Goiter
- Pretibial Myxedema
1 min
Graves' Disease Labs and Treatment
- Labs
- Decreased TSH
- Increased T3
- Increased T4
- Radioactive Iodine Uptake (RAIU)
- Treatment
- Beta blocker
- Methimazole
- Radioiodine Ablation
1 min
Myasthenia Gravis
- Mechanism
- Antibodies to Acetylcholine Receptor
- Symptoms
- Ptosis
- Diplopia
- Weakness with Muscle Use
- Respiratory Death
- Thymus Associated
- Treatment
- Acetylcholinesterase Inhibitors
- Plasmapheresis
- Thymectomy
1 min
Myasthenia Gravis Assessment
- Weakness with Muscle Use
- Diplopia
- Ptosis
- Dysphagia
- Difficulty Speaking
- Fatigue
- Complications
- Cholinergic Crisis
- Overmedicated
- Myasthenic Crisis
- Not Enough Medication
- Respiratory Muscle Paralysis
2 mins
Lambert-Eaton Syndrome
- Mechanism
- Autoantibody to the Presynaptic Calcium Channel on Motor Neurons
- Inhibits Acetylcholine (ACh) Release at Neuromuscular Junction
- Paraneoplastic Syndrome
- Small Cell Lung Cancer
- Symptoms
- Proximal Muscle Weakness
- Improves with Muscle Use
- Autonomic Symptoms
- Extraocular Muscle Sparing
2 mins
Multiple Sclerosis Interventions
- Drug Therapy
- Corticosteroids
- Interferon Beta
- Dimethyl Fumarate (Tecfidera)
- Fingolimod (Gilenya)
- Mitoxantrone (Novantrone)
- Natalizumab (Tysabri)
- Considerations
- Increase Exercise
- Identify Triggers
2 mins
Multiple Sclerosis Assessment
- Cause/Mechanism
- Nerve Fiber Demyelination
- Assessment
- Motor Issues
- Cerebellar Signs
- Fatigue
- Paresthesias
- Spasticity
- Urinary Incontinence
- Optic Neuritis
- Considerations
- Women Between 20-50 Years Old
- Relapse and Remission of Symptoms
2 mins
Rheumatoid Arthritis Assessment
- Mechanism
- Destruction of Connective Tissue and Synovial Membrane
- Signs and Symptoms
- Inflammation of Joints
- Morning Stiffness
- Nodules
- Joint Deformities
1 min
Rheumatoid Arthritis Interventions
- Lifestyle Modifications
- Heat and Cold Applications
- Therapeutic Exercise
- Balance Rest and Activity
- Drug Therapy
- NSAIDs
- DMARDs
- Glucocorticoids
- Considerations
- PT/OT
- Reconstructive Joint Surgery
2 mins
Guillain-Barre Syndrome Assessment
- Assessment
- Ascending Paralysis
- Muscle Weakness
- Paresthesias (Pins and Needles)
- Diplopia
- Difficulty Speaking
- Dysphagia
- Labile Blood Pressure
- Loss of Bowel and Bladder Control
- Considerations
- Aggressive Airway Management
2 mins
Celiac Disease
- Cause
- Intestinal Mucosa Damage
- Ingestion Wheat, Barley, Rye
- Assessment
- GI Distress
- Steatorrhea
- Weight Loss
- Dermatitis Herpetiformis
- Interventions
- Gluten-free Diet
- Considerations
- Screening
2 mins
