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32 yo presents with c/o fever, night sweats and unexplained wt loss. Upon exam you note a swollen cervical lymph node. A subsequent CXR reveals mediastinal adenopathy. Which of the following is the dx?
Hodgkin’s lymphoma
- Hodgkins disease
- Cause is unknown
- More common in males; avg age is 32 yrs
- Usually presents with cervical adenopathy and spreads in a predicatable fashion along lymph node groups
- Characteristic Reed-Sternberg cells differentiate form non-hodgkin’s disease
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Know coagulation labs re: what blood products to give:
- PLT (150-400K) give PLT
- Clotting factors give FFP,(Factors V, VIII, PT: INR)
- Fibrinogen (if <170 mg/dL) give Cryoprecipitate
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Lymphoma present in R axilla and R neck. What stage?
Stage II – same side of diaphragm.
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What is Von Willenbrand disease and tx for sugery
Lack of factor VIII
Give DDAVP preoperatively
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What are the 12 Cranial nerves and their fx
- Olfactory= smell
- Optic= vision
- Oculomotor= most EOMs opening eyelids, pupillary constriction
- Trochlear= down and inward eye movement
- Trigeminal= Muscles of mastication, sensation of face, scalp, cornea, mucus, membranes and nose
- Abducens= lateral eye movement
- Facial= move face, close mouth and eyes, taste, saliva and tear secretion
- Acoustic= hearing and equilibrium
- Glossopharyngeal= speech sounds, gag reflex, carotid reflex, swallowing, taste
- Vagus= talking, swallowing, general sensation from the carotid body, carotid reflex
- Spinalaccessory= movement of trapezius, and sternomastoid muscles
- Hypoglossal= moves the tongue
Type- Some, say, marry, money, but, my, brother, says, big, bras, matter, most
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What are the components of the mental status exam
- Appearance
- Behavior
- Cognition
- Thought processes
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Transient Ischemic Attack (TIA)
Characteristic
Signs and symptoms
Lab/diagnostics
- TIA-period of acute cerebral insufficiency lasting less than 24hrs without residual deficits
- Signs and symptoms
- Altered vision, altered speech, motor impairment, sensory deficits, cognitive and behavioral abnormalities
- Lab/diagnostics
- CT is best in distinguishing btw ischemia, hemorrhage and tumor
- MRI is superior to CT in detecting ischemic infarcts
- Echocardiogram, Carotid Doppler and ultrasonography
- Cerebral angiography
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TIA classifications
- Vertebrobasilar- as a result of inadequate blood flow from vertebral arteries
- Presentations include: vertigo, ataxia, dizziness, visual field deficits, weakness, confusion
- Carotid- Due to carotid stenosis
- Presentations include: Aphasia, dysarthria (slurred speech), altered LOC, weakness, numbness
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Management of TIA
- Aspirin
- Plavix 75mg/day by mouth
- Ticlopidine: associated with agranulocytosis, thrombotic thrombocytopenia purpura and GI intolerance
- Assess for HTN
- Carotid endarterectomy decreases the risk of stroke and death in pts with recent TIA
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CVA
Signs and symptoms of:
CVA infarct
Hemorrhagic CVA
- CVA infarct
- Changes in LOC, Motor weakness or paralysis
- Visual alterations, changes in vital signs
- Hemorrhagic CVA
- Signs seen on the opposite side of infarct or hemorrhage involvement
- Increase ICP, altered mentation, HA, vomiting
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Difference in signs and symptoms of hemorrhagic CVA
- Left (dominant) hemisphere involvement
- See right hemiparesis, aphasia, dysarthria, difficulty reading and writing
- Right (non-dominant) hemisphere involvement
- See left hemiparesis, right visual field changes, spatial disorientation
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Laboratory and diagnostics for CVA
- Head CT
- Cerebral angiography – images of blood vessels in brain
- Lumbar puncture for grade 1 and 2 aneurysm to detect blood in CSF
- LP contraindicated with large bleeds due to brain stem herniation
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Management of CVA
- For thrombolytic strokes
- Fibrinolytic therapy is indicated less than 3-4.5 hrs of symptoms
- Surgical evacuation of bleeding
- Systemic BP stability – avoid hypotension, may exacerbate ischemic deficits
- Maintain Map 110-130 to treat cerebral vasospasm
- Nimotop- calcium channel antagonist, helps to counter vasospasm by preventing calcium from entering smooth muscle cells and causing contraction
- ICP goal <20
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Seizures
Seizure classification for
Partial
Simple
Complex
- Simple partial – common with cerebral lesions
- No loss of consciousness
- Motor symptoms often start in single muscle group and spread to entire side of body
- Paresthesia, flashing lights, vocalizations, hallucinations
- Complex partial
- Any simple partial followed by impaired level of consciousness
- May have aura, starring, or automatisms such as lip smacking and picking at clothing
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Seizures
Seizure classification for
Generalized
Absence (petite mal)
Tonic-clonic (grand mal)
- Absence- sudden arrest of motor activity with blank stare
- Common discovered in children/adolescents; begin and end suddenly
- Tonic-clonic
- May have aura
- Begins with tonic contraction (repetitive muscle contraction) loss of consciousness, then clonic contraction (maintained contraction of muscle)
- Last 2-5mins, followed by postictal period
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What is status Epilepticus
- Series of grand mal seizures of >10 min duration
- Medical emergency
- May occur when patient is awake or asleep
- Pt never gains consciousness between attacks
- Life threatening
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Management of seizures
- Parenteral anticonvulcents are used to stop convulsive seizures rapidly
- benzodiazepines: Diazepam (valium) 5-10mg IV
- Lorazepam (Ativan) 2-4mg IV at 1-2 mg/min
- Phenytoin (Dilantin): loading dose 20 mg/kg @ 50mg/min continuous infusion
- Fosphenytoin (Cerebyx): prodrug of Dilantin
- Phenobarbital (luminal): administered if Dilantin is unresponsive
- Barbiturate coma or general anesthesia with neuromuscular blockade
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Myasthenia Gravis
Cause
Signs and symptoms
Lab
Management
- Decrease in acetylcholine receptor sites
- Ptosis, diplopia, dysarthria (slurred speech) dysphagia, fatigue, extreme weakness, resp difficulty- think visual changes, extreme weakness, and resp issue
- Sensory modalities and DTRs are normal
- Antibodies to acetylcholine AchR-ab are found in 80%
- Edrophonium (tensilon) test used to differentiate myasthenic vs cholinergic crisis
- No specific protocol- consult neurology
- Anticholinesterase drugs block the hydrolosis of acetylcjoline and are used for symptomatic improvement (pyridostigmine bromide)
- Immunosuppressive, plasmapheresis
- Vent support during crisis
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Multiple Sclerosis
Cause
Signs and symptoms
Lab
Management
- The body’s immune attacks myelin- key substance that serves as a nerve insulator and helps transmission of nerve signals
- Weakness, numbness, tingling, or unsteadiness in a limb, may progress to all limbs- think neurosensory
- Definitive diagnosis can never be based solely on labs
- No tx to prevent progression of the disease- neurology consult
- Recovery from relapse with steroid use
- Antispasmodics, interferon therapy
- Immunosuppressive, plasmapheresis
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Guillain-Barre Syndrome
Causes/general concept
Signs and symptoms
Lab diagnostics
Management
- The syndrome is usually preceded by suspected viral infection accompanied by fever 1 to 3 weeks before onset of bilateral muscle weakness in lower extremities
- Presentation- rapid progressive increase in paralysis
- CSF protein is elevated, CBC-early leukocytosis with left shift
- LP, MRI, CT are sometimes used in aiding diagnosis
- Tx-neuro consult- txis supportive while myelin is regenerated
- Symptoms begin to recede within 2 weeks with recovery in 2 yrs
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Meningitis
General concept
Signs and symptoms
- General concept
- Meningitis should be considered in any pt with fever and neurologic symptoms especial with hx of infection
- Acute bacterial meningitis is a medical emergency
- Symptoms
- Fever 101-103, severe HA, NV
- Nuchal rigidity (stiff neck), photophobia
- Positive kernig’s sign
- Pain and spasms of the hamstring muscles
- Positive Brudzinski’s sign
- Legs flex at both the hips and knees in response to flexion of the head and neck to the chest
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Meningitis
Lab/diagnostics
- Lab/diagnostic
- LP-CSF will be cloudy or yellow in color with
- Increase pressure and protein
- Decreased glucose with presence of WBCs
- CT of head indicated
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Management of Meningitis
- Control symptoms and maintain electrolyte balance
- High does parenteral antibiotic therapy
- PCN G, Vanco with a 3rd gen cephalosporin (ceftriaxone, ceftaxime, ceftazidime) until C&S is available, or fluoroquinolones
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Head trauma
Signs and symptoms
Diagnostics
- Decompensating patient may show signs of Cushing’s triad
- Widening pulse pressure
- Decreased RR and HR
- Battle signs: bruising behind ear at mastoid process
- Raccoon eyes Otorrhea or rhinorrhea
- Diagnostics
- Cervical spine films should be obtained for all pts
- Skull films and head CT
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Spinal cord trauma
Site with signs and symptoms
C4 or above= quadriplegia; may require mechanical ventilation
C4-C5= quadriplegia; control of head, neck, shoulders, trapezius and elbow flexion
C5-C6= quad; some extension of wrist, index finger and thumb
C6-C7= elbow extension, capable of feeding, dressing
C7-T1= hand movement
T1-T2= paraplegia; upper extremity control but no trunk control
T3-T8= no trunk control
T9-T10= bowel and bladder reflex, moves trunk and upper thigh
T11-L1= most leg and some foot movement; ambulation poss
L1-L2= lower legs, feet and perineum; control bowel, bladder and sexual dysfunction if S2 to S4 spinal nerves are involved
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Management for spinal cord trauma
- Methylprednisolone 30 mg/kg IV bolus, followed by infusion of 5.4mg/kg/hr for 23 hrs
- Must be administered within 8hrs of injury
- Consult neurology/neurosurgery
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Complication of Spinal cord trauma
- C4 injury or above: respiratory compromise
- T4-T6: may lead to autonomic dyserflexia- emergency
- Caused by exaggerated autonomic response to a stimulus- symptoms include
- Diaphoresis and flushing above injury
- Chills and severe vasoconstriction below injury
- HTN, Bradycardia, HA, Nausea
- Tx- antihypertensive and stimulus removal
- T6 or above –neurogenic shock- massive vasodilation
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What is the difference between:
Delirium
Dementia
- Delirium: sudden, transient onset
- Causes- toxins, alcohol, trauma, impactions in the elderly, poor nutrition, electrolyte imbalances, anesthesia
- Dementia: gradual memory loss- neurocognitive disorder
- Cause- Atherosclerosis, neurotransmitter deficits, cortical atrophy, ventricular dilation, loss of brain cells, viral, Alzheimer’s disease
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Dementia mnemonic to rule out other disease
D= drug reaction/interaction
E= emotional disorder
M= metabolic/endocrine disorder
E= eye and ear disorders
N= nutritional problems
T= tumors
I= infection
A = arteriosclerosis
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What is Homonymous hemianopia
Is a visual field loss on the left or right side of the vertical midline.
It can affect one eye but usually affect both eyes
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What cranial nerves are sensory only
CN- I (Olfactory), II (Optic), VIII (Acoustic)
Remember:
Some, Say, Marry, Money, But, My, Brother, Says, Big, Bras, Matter, Most
CN: I, II, III, IV, V, VI, VII, VIII, IX, X, XI, XII
On Old Olympus Towering Tops A Fin And German Viewed Some Hops
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What cranial nerves are both sensory and motor
CN-V (trigeminal), VII (facial), IX (Glossopharyngeal), X (Vagus)
Remember:
Some, Say, Marry, Money, But, My, Brother, Says, Big, Bras, Matter, Most
CN: I, II, III, IV, V, VI, VII, VIII, IX, X, XI, XII
On Old Olympus Towering Tops A Fin And German Viewed Some Hops
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Cauda Equina syndrome
What is it
Signs and symptoms
Causes
- Is a surgical emergency due to compression of spinal cord root-18 nerve roots of the cauda equine at base of spine.
- S/S : Pain, numbness, tingling & low back pain radiating into leg(s),
- S1-S2: weak plantar flexion w/loss of ankle jerks, foot drop. S3-S5: Loss of bowel/bladder. Muscle weakness, sensory loss in the dermatomal distribution of the affected nerve roots.
3) Cause: tumor, spinal stenosis, herniated disc, CA, infxn, inflammation.
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You are examining a pt with PMH of seizures. Pt sustains a seizure lasting around 1 minutes. What is the most appropriate intervention?
Valium 5-10 mg IV
Parenteral anticonvulcents are used to stop convulsive seizures rapidly benzodiazepines: Diazepam (valium) 5-10mg IV
Lorazepam (Ativan) 2-4mg IV at 1-2 mg/min
Phenytoin (Dilantin): loading dose 20 mg/kg @ 50mg/min continuous infusion
Fosphenytoin (Cerebyx): prodrug of Dilantin
Phenobarbital (luminal): administered if Dilantin is unresponsive
Barbiturate coma or general anesthesia with neuromuscular blockade
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What CSF values are characteristic of bacterial meningitis?
↑ opening pressure, ↑ protein, WBC, ↓ glucose
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Asthma
What is it
Signs and symptoms
Lab/diagnostics
- Widespread narrowing of the airways
- Signs and symptoms
- Resp distress at rest, difficulty speaking, RR>28, Pulse>110, cough, chest tightness
- Bad signs include-
- fatigue, absent breath sounds, paradoxical chest/abd movement, inability to maintain recumbency, cyanosis
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Asthma
Lab/diagnostics
- Slight WBC elevation with eosinophilia
- PFT reveal obstructive dysfunction
- Hospitalization for
- FEV1<30% that does not increase to 40% after 1hr of therapy
- Peak flow <60L/min or does not improve >50% after 1 hr of tx
- ABG= resp alkalosis with mild hypoxemia
- Hypercapnia is a bad finding
- pCO2 >45 indicates emergency
- Normal pCO2 indicates a very sick patient
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Asthma
Outpatient Management
- Short acting B adrenergic agonist for symptom relief
- Albuterol
- Daily inhaled corticosteroids
- Budesonide (Pulmicort)
- Long acting B adrenergic agonist for persistent sympt
- Salmeterol (serevent); theophylline
- Inhaled anticholinergics may be added if necessary
- Ipratropium bromide (atrovent)
- Antilerkotriences useful in the maintenance of chronic
- Montelukast (singler)
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Asthma
Inpatient management
- Supplemental O2
- ABG for severe attacks
- Adequate hydration
- Inhaled sympathomimetics (adrenaline effects)
- Alupent 2.2ml q30-60mins, Proventil 3ml q30-60min
- Corticosteroids in pts who do not respond to sympathomim
- Methylprednisolone 60-125mg IV X1 then 20mg IV q4-6hrs until attack broken
- Parenteral sympathomimetics in pts unable to cooperate
- Aqueous epinephrine 1:1000 SQ q30-60min may repeat X4
- Anticholinergic (Atrovent) MDI 2-6puffs q4-6hrs
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Status Asthmaticus
Management
- Oxygen
- IV D5 ½ NS
- Inhalation and parenteral sympathomimetics
- Methylprednisolone 60-125mg or hydrocortisone 300mg IV immediately
- Consider atrovent
- Monitor ABG q10-20min
- Intubate
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COPD
Lab/diagnostics
Outpatient management
In patient management
- Low flattened diaphragm by CXR
- Low FEV1
- Increased TLC, FRC, RV, paCO2, HCO3
- Outpatient
- Inhaled ipratropium bromide or sympathomimetics mainstay of therapy
- Inpatient
- Supplemental O2
- Clients with purulent sputum should receive antimicrobials for 7-10 days
- Ampicillin or amoxicillin 500mg 4X daily
- Doxycycline 100mg BID
- Bactrim DS 1 tablet BID
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COPD
Chronic bronchitis
s/s
Emphysema
s/s
- Chronic Bronchitis- excessive secretion + productive cough for 3months in at least 2 consecutive yrs
- Copious sputum (purulent), stocky, obese
- Bulla, blebs, hyperinflation on CXR,
- hypercapnia, hypoxemia on ABG
- Emphysema= abnormal, permanent enlargement of the alveoli
- Progressive, constant dyspnea, sputum clear
- Thin wasted body, TLC increased
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TB management and drug regimen
- Notify local health department
- Med regimen
- Isoniazid 300mg, Rifampin 600mg, Pyrazinamide 1.5-2.0gm, Ethambutol 15mg/kg, or streptomycin 15mg/kg IM daily
- Continue the first 3 drugs daily for 2 months, then 4 months of INH and RIF daily
- Persons with HIV should be treated for nine months
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Pneumonia
CAP management
- Healthy patients <60 with no comorbidities and no recent abx therapy
- Macrolide- azithromycin, clarithromycin, erythromycin, or doxycycline
- Patients with health problems- COPD, DM, HF, Cancer, or >60 and no recent abx therapy
- Fluoroquinolone- levofloxacin, gemifloxacin, moxifloxacin
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Pneumonia
Inpatient ICU management
- Supplemental O2
- Beta lactam (rocephin; Unasyn) + azithromycin or fluoroquinolone
- For pseudomonas infection
- Piperacillin-tazobactam (Zosyn), Cefepime or menopenem + Cipro or levofloxacin or beta lactam + aminoglycoside and fluoroquinolone
- For MRSA staph aureus infection
- Add vanco or linezolid
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Pneumonia
What is HAP
What is VAP
- Pneumonia that occurs 48hrs or more after admission
- Staph aureus, strep pneumoniae, and haemophilus influenza most common causative organisms
- Pneumonia that arises 48-72 after intubation
- Pseudomonas most common causative organism
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Treatment of pneumothorax
- Chest tube is first – 4th or 5th ICS, MAL
- Emergency
- Needle thoracotomy- 2nd ICS, MCL
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Pulmonary Embolus
Lab/diagnostics
Management
- Lab/diagnostic
- VQ scan for clinically stable patients
- ABG- hypoxemia (saO2<90%, paCO2 <80), hypocapnia
- Spiral CT/D-dimer
- Management
- O2, fluids for hypotension and reduced CO
- Intubation for worsening hypercapnia
- Heparin and fibrinolytic therapy
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