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104 Cards in this Set

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What are 2 signs that an airway is present? ii)what takes precedence in cervical spine injury: the injury or the airway?
i)pt is a)conscious b)speaking in normal tone of voice iv)airway takes precedence over cervical spine injury
What are the 2 options in ER if need an airway?
i)a)orotracheal b)nasotracheal over a fiberoptic bronchoscope
How to assess breathing? x2
i)hearing breath sounds on both sides of chest ii)having satisfactory pulse oximetry
What are 2 options to get an airway if there is maxillofacial injuries? When can you not use PCTT?
ii)a)cricothyroidotomy b)percutaneous transtracheal ventilation iii)if need hyperventilation for CNS injuries
What are 2 examples of how an airway can become lost? x2
ii)a)if there is an expanding hematoma or b)emphysema in neck
What are signs that you need an airway x2?
i)pt is unconscious ii)breathing is gurgly or noisy
What are the clinical signs of shock? x5
i)BP<90 sys ii)fast feeble pulse iii)low urinary output (<0.5 mL/kg/h) iv)pale, cold, shivering v)sweating and thirsty
What are the 3 causes of shock in trauma? What must occur in order for tamponade or pneumo to happen?
i)a)hypovolemia b)pericardial tamponade c)tension pneumo ii)blunt or penetrating trauma to chest
What is the difference clinically between shock caused by tamponade/pneumo vs hemorrhagic ? What is the diff clinically b/w tamponade and pneumo?
i)hemorrhagic has low CVP so flat neck veins; tamp/pneumo has distended head and neck veins ii)tamponade doesn't have respiratory distress
What is the order of operations for hemorrhagic shock in trauma center that will require surgery anyway x2? What about all other cases?
i)a)surgery to stop the bleed b)volume replacement ii)a)volume replacement w/2L Ringer lactate b)pRBCs until UOP is 0.5-2. Don't exceed CVP 15 mmHg
What is preferred route of fluid resuscitation? If they can't be inserted, what are 2 alternatives?
i)2 16 gauge peripheral IV lines ii)a)percutaneous femoral vein catheter b)saphenous vein cut-down
How do you diagnose pericardial tamponade? what if its unclear? How do you treat it? What methods do you use to treat it x4? What do you want to give while setting up the treatment?
i)clinical ii)sonogram (not xray) iii)prompt evacuation iv)a)pericardiocentesis b)tube c)pericardial window d)open thoracotomy v)fluid and blood administration
How do you diagnose tension pneumothorax? What is first step? What is 2nd step?
i)clinical (don't wait for ABG or xray) ii)insert big needle or big IV catheter into pleural space iii)put in chest tube connected to underwater seal (both inserted high in anterior chest wall)
Nontrauma: What are other causes of massive fluid loss besides bleeding x4? What is the key finding? How do you treat x2?
i)a)bad diarrhea b)pancreatitis c)peritonitis d)burns ii)low CVP iii)a)stop the bleeding b)blood volume replacement
What are 3 types of shock?
i)bleeding ii)cardiogenic iii)vasomotor
What are 2 causes of cardiogenic shock? What is CVP? How to treat? Why is it being on the DDX of shock essential?
i)a)MI b)fulminant myocarditis ii)high: distended neck veins iii)circulatory support iv)if give fluids and blood, then will be lethal
When is vasomotor shock seen x3? What happens? what does the patient look like? What is the CVP? What is the main therapy and what else helps?
i)a)anaphylactic rxn b)high spinal cord transection c)high spinal anesthetic ii)circulatory collapse in "pink and warm" pts iv)low v)pharm treatment to restore peripheral resistance and additional fluids will help
What do you do for penetrating head trauma? x2
i)surgical intervention and ii)repair of damage
When are linear skull fractures left alone and when are they closed? What do you do if the fractures are comminuted(crushed into many pieces) or depressed?
i)if they are closed(no overlying wound), leave alone; if open fracture, then close ii)take to OR
What do you do for anyone w/head trauma that becomes unconscious? What happens if negative and neurologically intact?
i)give head CT to look for intracranial hematomas ii)can go home if familiy can observe for 24 hours to ensure not getting worse
What are signs of base of skull fracture? x4 What is the rule for therapy? What do you have to do? What don't you have to do for therapy?
i)a)raccoon eyes b)rhinorrhea c)otorrhea d)ecchymosis behind ear ii)expectant therapy iii)get a cervical spine x ray or CT iv)ABx
What are the 3 components of trauma that can cause neurologic damage and what are their treatments?
i)initial blow--no treatment ii) hematoma that develops and displaces midline structures--surgery iii)subsequent increased ICP--medical measures prevent or minimizes
When does acute epidural hematoma occur? What does CT show? What is the cure?
i)modest trauma to the side of head ii)biconvex lens shaped hematoma iii)emergency craniotomy
What is the classic sequence of epidural and subdural hematoma? x6
i)trauma ii)unconsciousness iii)lucid interval (w/completely asymptomatic pt who returns to previous activity iv)gradual lapsing into coma again v)fixed dilated pupil (90% of time on side of hematoma) vi)contralateral hemiparesis w/decerebrate posture
how is presentation of subdural hematoma diff from epidural?
same sequence but: i)trauma is bigger ii)pt is much sicker (not fully awake and asymptomatic at any point) iii)neurologic damage is severe due to initial blow
What does CT scan show in subdural hematoma? What is therapy if midline structures are deviated?
i)semilunar, crescent shaped hematoma ii)craniotomy will help but bad prognosis
What is therapy centered on for subdural hematoma if no deviation in midline structures? What are the things you want to do for the patient? x7 What do you not want to do in diuresis?
i)preventing further damage from subsequent increased ICP ii)a)ICP monitor b)elevate head c)hyperventilate d)avoid fluid overload e)give mannitol or furosemide f)sedation to decrease brain activity and O2 demand; hypothermia is a better way of decreasing O2 demand iii)avoid lowering systemic arterial pressure
What occurs in more severe trauma to the head? What does CT show x2? What is therapy directed at, and when to use surgery?
i)diffuse axonal injury ii)a)diffuse blurring of gray-white matter interface b)multiple punctate hemorrhages iii)preventing damage from increased ICP; only if there is hematoma
Who does chronic subdural hematomas occur in x2? How does it occur? What is presentation? What is diagnostic? What is cure?
i)alcoholics; very old ii)shrunken brain is rattled around the head by minor trauma, tearing venous sinuses iii)over several days or weeks the mental function deteriorates as hematoma forms iv)CT scan v)surgical evacuation
Can hypovolemic shock occur from loss of blood from head?
no
What are 4 cases where you need surgical exploration of trauma to the neck?
i)a)expanding hematoma b)clear signs of esophageal or tracheal injury (coughing or spitting up blood) c)deteriorating vital signs d)GSW to middle zone of neck
What is the approach for GSWs to the neck?
i)GSW to upper zone: arteriographic diagnosis and management ii)GSW to base of neck: a)arteriography, b)esophagogram (water soluble, followed by barium if neg), c)esophagoscopy, and d)bronchoscopy before surgery to decide on specific surgical approach
When can you just observe stab wounds in the neck?
if i)upper and middle zones ii)asymptomatic
If blunt trauma to the neck occurs, what must be ascertained? What is next step and what kind of patients do you do this in? What type of films x3? What is next step after?
i)cervical spine integrity ii)need to radiologically check the spine for neuro deficit patients and neuro intact patients w/pain on palpation to cervical spine iii)a)AP, lateral cervical spine, odontoid iv)if still strong clinical suspicion, do CT scan. If there was head trauma, can extend the CT to the neck initially
What is hemisection spinal cord injury due to? What is physical exam? x2
i)clean cut injury like knife blade ii)a)loss of proprioception and motor on same side, below the lesion b)loss of pain on opposite side distally
What is anterior cord syndrome typically seen in? What does physical exam show? x3
i)burst fractures of vertebral bodies ii)a)loss of motor function b)loss of pain and temp on both sides distally c)preservation of vibratory and positional sense
What situation does central cord syndrome present in? What is PE x2
i)elderly w/forced hyperextension of the neck (rear end collision) ii)a)paralysis and burning pain in upper extremities b)preservation of most functions in lower extremities
What is management of spinal cord injuries x2?
i)precise diagnosis of cord injury w/MRI ii)high dose steroids immediately post-injury
What is the progression in rib fracture, especially in elderly? x4 How to treat?
i)a)pain-->b)hypoventilation-->c)atelectasis-->d)pneumonia. ii)local nerve block
When does plain pneumothorax occur? What are the symptom/signs x3 What is treatment x3
i)penetrating trauma (ie: jagged edge of broken rib or penetrating weapon) ii)a)SOB b)hyperresonance c)no breath sounds on one side iii)a)CXR b)place chest tube (upper, ant) c)connect to underwater seal
How does hemothorax occur? what is diff in signs? How to diagnose? How to treat? What is the usual bleeding source? If the source is systemic vessel, what is needed?
i) penetrating trauma (ie: jagged edge of broken rib or penetrating weapon) ii) Affected side is dull to percussion iii) Diagnose by CXR iv) place chest tube v> lung is bleeding source vii) thoracotomy
What are the factors that dictate the need for surgery in hemothorax? x2
i)recovering 1500 mL or more when chest tube is inserted ii)collecting over 600 mL in tube drainage over the ensuing 6 hours
In severe blunt trauma to the chest, how do you monitor the hidden injuries?
i)blood gases and CXR to detect developing pulmonary contusion ii)cardiac enzymes (trops) and EKG for myocardial contusion iii)traumatic transection of aorta (seek it out)
What does PE show for sucking chest wounds(sound thru hole when breathe in)? What happens if untreated? What is first aid for this?
i)flap that suck air w/inspiration and closes w/expiration ii)leads to deadly tension pneumo iii)occlusive dressing that allows air out (taped on 3 sides) but not in
What is the problem in flail chest? Why? How to treat this problem? x3 What should you monitor and why? if need respirator, what should you do and why? What else should you actively seek out?
i)the underlying pulmonary contusion ii)contused lung is very sensitive to fluid overload iii)a)fluid restriction b)use of colloids (plasma or albumin instead of crystalloids) c)diuretics iv)ABGs b/c pulm dysfcn may develop v)b/l chest tubes to prevent tension pneumo (broken ribs can puncture) vi)transection of aorta
when does pulm contusion appear? x2 What are the signs? x2
i)either a) immediately after chest trauma b)or up to 48 hours after (hidden injury) ii)a)white out on CXR b)deteriorating blood gases
What should be suspected in sternal fractures? What will detect this x2? What other test is less reliable? What is the treatment?
i)myocardial contusion ii)a)trops are specific; b)EKG iii)cardiac enzymes iv)treat for complications (arrhythmia)
What would bowel in the chest indicate in chest trauma? What will lead you to suspect it? x2 What should you use to evaluate? From where do you do the surgery?
i)traumatic rupture of diaphragm ii)a)PE b)CXR, both on the left side. ii)laparoscopy iii)from abdomen
What is the ultimate hidden injury in chest trauma? Where does it happen? What situation will cause it? What is the mechanism of death? What are presenting signs and symptoms? x3
i)traumatic rupture of aorta ii)junction of arch and descending aorta iii)big deceleration injury iv)asymptomatic until hematoma contained by adventitia blows up and kills patient v)a)knowing that patient suffered decel injury b)presence of fractures in chest bones that are hard to break (first rib, scapula, sternum) c)CXR with widened mediastinum
In traumatic rupture of aorta w/o widened mediastinum, what tests are used? x3 Which is most practical in trauma setting? If there is widened mediastinum, what is indicated if noninvasive studies are inconclusive?
i)noninvasive tests are used a)TEE b)CT Spiral c)MRI angiography ii)spiral CT iii)aortogram
When would you be suspicious of raumatic rupture of trachea or major bronchus? x2 What is the diagnostic tests? x2
i)a)developing SubQ emphysema in upper chest and lower neck b)large air leak from chest tube ii)a)CXR confirms presence of air in tissues b)fiberoptic bronchoscopy identifies lesion and allows intubation to secure an airway beyond the lesion
What is the DDX of subcutaneous emphysema? x2
i)rupture of esophagus (usually after endoscopy) ii)tension pneumo (but more alarming is the respiratory distress and shock)
What is suspected when there is sudden death in chest trauma patient who is intubated and on respirator? When else does this happen and what are examples x3?
i)air embolism ii)when subclavian vein is opened to air leading to sudden collapse and cardiac arrest: a)supraclavicular node biopsies b)central venous line placement c)CVP lines that get disconnected,
What is the management of air embolism? What preventative measures can be used?
i)immediately do a carotid massage ii)trendelenberg position when the great veins at base of neck are to be entered
What is typical setting for fat embolism? What are the signs and symptoms x4? What is seen on CXR? What is mainstay of therapy?
i)multiple trauma including several long bone fractures ii)respiratory distress with a)petechial rashes in axillae and neck b)fever c)tachy d)low plts iii)b/l patchy infiltrates iv)respiratory support
What should you do for GSWs to abdomen and why? What level of the body is considered to involve the abdomen?
i)exploratory laparatomy to repair intra-abdominal injuries (not to find bullet) ii)entrance or exit wound below the nipple line
What are the indication for exploratory laparotomy in stab wounds? x3 What do you do if its not indicated? If that is equivocal?
i)a)penetrating viscera b)hemodynamic instability c)signs of peritoneal irritation develop ii)digital exploration of wound in ER and observation iii)CT scan
What are the signs of internal bleeding in a patient w/blunt trauma? x6 How much blood is lost in order to create these signs? Where can this amount of blood be found w/o being obvious on PE, CXR? x3 How do you narrow it down to the abdomen?
i)a)drop in BP b)low CVP c)fast thready pulse d)low UOP e)cold, pale, anxious f)shivering, thirsty, perspiring ii)25% (1500mL) iii)a)thighs (femur fracture) b)pelvis (pelvic fractures) c)abdomen iv)multiple trauma pt w/normal CXR, normal PE going into hypovolemic shock
What is best test for intraabdominal bleeding? what can be known from the CT? x4 What is the main limitation for CT scan?
i)CT ii)a)if the patient has blood in ab b)will show the injury from where the bleeding is from c)gives an idea how bad the injury is d)w/the pt's response to fluids, it allows a decision to be made for surgery or expectant therapy iii)hemodynamically stable
In intraabdominal bleeding, what type of patient doesn't need surgery? Who does require surgery?
i)minor internal injuries who responds promptly to fluid resuscitation ii)major injuries and vital signs not improving w/fluid resuscitation
How do you diagnose intraabdominal bleeding in pt who is hemodynamically unstable? x2 If positive, what should you do?
i)a)DPL b)sonogram ii)proceed to exploratory laparotomy
What is the most common source of significant intra-ab bleeding in blunt ab trauma and what is it due to? What is most common source in general? What is attempted to be done for these patients? What must you do if have to remove it?
i)spleen, due to fracture of lower ribs on left side ii)liver iii)try to repair it, not remove it iv)post op immunization against encapsulated bacteria (pneumococcus, H flu, meningococcus)
What occurs during prolonged ab surgery for multiple trauma w/multiple transfusions? How to treat? What do you do if hypothermia and acidosis?
i)intraoperative coagulopathy ii)empirically treat w/platelet packs and FFP iii)termination of laparotomy w/packing of bleeding surfaces and temporary closure w/towel clips. Resume later when pt warmed and coagulopathy treated
What happens when lots of fluids and blood are given during course of prolonged laparotomies? What do you do, and what materials can you use?
i)abdominal compartment syndrome: tissues are swollen at closing time and abdomen can't be closed w/o too much tension ii)put temporary cover over ab contents: a)absorbable mesh b)nonabsorbable plastic thats removed later
When does abdominal compartment syndrome often occur if not immediately? What do you do then?
i)2 days Post op: pt gets distended w/retention sutures cutting thru tissues, hypoxia secondary to inability to breathe, and renal failure from pressure on vena cava. ii)abdomen must be opened and temporary cover provided
What do you do for pelvic hematomas if not expanding?
leave alone
What must you rule out in any pelvic fracture? x4
associated injuries: i)rectum (rectal exam and proctoscopy) ii)bladder iii)vagina via pelvic exam iv)urethra in men (retrograde urethrogram)
How to diagnose pelvic fractures w/ongoing bleeding?
i)hypovolemic shock in pelvic fracture w/r/o of other bleeds (-sono/-DPL; or --CT).
In pelvic fracture, what are the ways to decrease bleeding? What don't you want to do?
i)external fixation ii)arterial: arteriographic embolization iii)not surgery!: lose tamponade effect and often inaccessible
What is the hallmark of urologic injuries? How is microscopic hematuria in traumatized but otherwise asympto adult differ from child and why?
i)blood in urine in a person who sustained penetrating or blunt abdominal trauma ii)no w/u in adult, but child needs it b/c they could have a vulnerable GU tract due to congenital problems. Esp when magnitude of trauma doesn't justify development of hematuria
What do you do for penetrating urologic injuries?
surgically explore and repair
when blunt urologic injuries occur, what 3 things can be affected and what is the usual source?
i)kidney: due to lower rib fracture ii)bladder or urethra: pelvic fracture
How does urethral injury present and what is ass'd w/? What 3 other signs can occur in the clinical picture? What is the key thing that you shouldn't do and what should be done instead?
i)blood at meatus; ass'd w/pelvic fracture ii)a)scrotal hematoma b)posterior injuries: sensation of wanting to void but not able to c)high riding prostate on rectal exam iii)Don't insert a foley (worsens the injury); use retrograde urethrogram
How do you treat anterior urethral injuries, and how do you treat posterior injuries? ii)what would be another diagnostic clue suggesting urethral injury?
i)ant: surgery; post: suprapubic drainage and delayed repair ii)try to insert foley but have resistance
How to dx bladder injury? What do you need w/the xray studies and why? How to treat bladder injury?
i)DX by retrograde cystogram ii)xray study includes postvoid films to see extraperitoneal leaks at base of bladder that might be obscured by bladder full of dye iii)surgical repair, protected w/suprapubic cystostomy
How to assess renal injuries in blunt trauma? how are they usually managed?what are 2 sequela that can occur?
i)CT ii)nonsurgically iii)a)get an AV fistula leading to CHF b)if renal artery stenosis develops, get renovascular htn
When do you need intervention in scrotal hematomas? How to assess this?
i)if get rupture of testicle (can get huge prior to this) ii)sonogram
What is fracture of penis? When does this happen? How does it present? How to treat this and if not done, what will happen?
i)fracture of corpora cavernosa, fracture of tunica albuginea ii)accident during vigorous intercourse w/woman on top iii)sudden pain and devlopment of a large penile shaft hematoma, w/normal appearing glans. iv)emergency surgery is needed v)impotence due to AV shunts
What is the main issue in penetrating injuries of extremities? What is the first clue?
i)whether or not vascular injury occurred ii)anatomic location
In penetrating injury of extremities, if no major vessels in vicinity of injury tract, what is needed? x2 If penetrates near a vessel and the pt is asymptomatic, what should be done? (2 options) When should surgical exploration and repair be done?
i)tetanus shot and cleaning of wound ii)doppler or if needed, arteriograms iii)if obvious vascular injury (absent distal pulses, expanding hematomas)
If there is injury of arteries, nerves and bone, what order do you repair? What else should you do and why?
i)bone>vascular repair(would be ruined during bone repair if first)>nerve ii)do a fasciotomy b/c prolonged ischemia can lead to compartment syndrome
What happens with high-velocity GSWs and what needs to be done?
i)get a large cone of tissue destruction ii)requires extensive debridements and potential amputations
What problems occur in crush injuries? x5 What do you do for each?
i)hyperkalemia; myoglobinemia; myoglobinuria; renal failure; compartment syndrome. ii)a)everything besides compartment syndrome: give fluids, osmotic diuretics, and alkalinzation of urine b)fasciotomy
What do you do immediately in chemical burns? Which is worse: alkaline or acidic burns?
i)massive irrigation asap ii)alkaline
What is needed in high voltage electrical burns?
i)deeper and worse than they appear, so need massive debridements or amputations.
In electrical burns, What other problems can occur? x3
ii)a)myoglobinemia-myoglobinuria-renal failure (give lots of fluids and osmotic diuretics like mannitol and alkalinze the urine). b)orthopedic injuries due to massive muscle contractions: 1)post dislocation of shoulder, 2)compression fractures of vertebral bodies c)late development of cataracts and demyelinization syndromes
What are respiratory burns (inhalation injury?) What are suggestive clues? x2 What is the key issue, and how do you go about figuring this out? How to DX? What should you monitor and what is the cure for it?
i)chemical injury that occurs w/flame burns in closed space due to smoke inhalation. ii)a)burns around the mouth b)soot inside the throat iii)whether respirator is needed; use ABGs iv)Monitor carboxyhemoglobin. v)use 100%O2
What is a sequela of circumferential burns of the extremities and how? What can happen in circumferential burn of chest? How to provide immediate relief?
i)get cutoff blood supply b/c get edematous underneath the eschar ii)can get problems w/breathing iii)esharotomy at bedside, no anesthetic
What should you think about w/scalding burns in children? What is a common method of doing so?
i)child abuse, esp if description of what happened doesn't match the burn. ii)burns on buttocks b/c dipped into boiling water
What is the rule of 9 for extent of burn?
head and each of upper extremities=9%; lower extremity is 2 9%, trunk is 4 units of 9%
How do you estimate the amt of fluids are necessary on day 1 and 2 for a burn victim? 3rd day what happens? What should you aim for in the pt's response?
1st day: kgBW x %burn (up to 50) x 4 mL +2000ccD5W. Want to infuse 1/2 the first 8 hours; infuse 1/2 the next 16 hours. 2nd day: 1/2 of the above, and may use colloid. 3rd day: no need for further fluid infusion, and get a brisk diuresis. Aim for 1-2cc/kg/hr in UOP
If you don't use the formula for figuring out fluids in a burn victim>20%, what can you do? What do you avoid in fluids?
i)start at predetermined rate of infusion (1000mL/h) of LR (w/o sugar) on pt and adjust based on UOP. Make sure you don't induce osmotic diuresis from glycosuria thus no sugar (invalidates meaning of UOP)
How do you use rule of 9 in babies? What is diff in 3rd degree from adults vs baby? What is amt of fluid you need for baby? What is appropriate rate of initial fluid infusion?
i)Babies have bigger heads and smaller legs, so 2 units 9% in head; both legs share 3 9's. ii)3rd degree in adults vs babies: adults=dry, leathery, gray; babies=deep bright red. iii)To calculate fliuds, use same equation except 4-6mL vs 2-4mL.(% x Kg x 4ml) iv)rate of initial infusion: 20mL/kg/hr if burn>20%
What other 3 things should you do in burn care besides fluids?
i)tetanus ppx ii)cleaning of burn areas iii)use of topical agents
What is the standard topical agent in burn care? What should you use for deep burns (thick eschar, cartilage)? What should you use for burns near eyes? How is pain medication given in early period? When is nutrition given and how? What happens after 2-3 weeks of wound care and general support? When does rehab start?
i)silver sulfadiazine ii)mafenide acetate (not used everywhere b/c can hurt and produces acidosis iii)triple Abx ointment. iv)pain meds given IV v)Nutrition given after day or 2 of NG suction via the gut w/high-calorie/high-nitrogen diet. vi)burned areas are grafted vii)day 1
Why do you do early excision and grafting? What does it mean? WHat kinds of burns can you do this in?
i)save costs and minimize pain, suffering, complications ii)implies removal in OR (on day 1) of burned areas w/immediate skin grafting iii)limited burns (<20%)
What is needed for all bites? x2
i)tetanus ppx ii)wound care
What do you do for provoked dog bites (pet while eating)? What if bitten on face?
i)no rabies ppx but observe dog for signs of rabies ii)b/c close to the brain, give rabies ppx and dc if observation of dog is reassuring
What do you do for an available unprovoked or wild animal bite? If can't catch the animal, what should you do?
i)kill and exmaine brain for rabies ii)rabies PPX is mandatory (Ig + vaccine)
Do poisonous snakes always lead to envenomation? What are the signs of envenomation (x3) and how long after bite? What tests should you get? x4 What is the treatment? How is the treatment dosed? What is the only valid 1st aid during transportation?
i)no, 30% don't get envenomated ii)a)severe pain, swelling, discoloration present w/in 30 minutes of bite. iii)a)type and match b)LFTs c)RFTs d)coags iv)antivenin, and dosed to size of venom, not patient. v)1st aid: splint extremity during transportation
Why do bee stings kill more than snakes? What is drug?
i)anaphylactic rxn ii)epinephrine
what are sxs of black widows? x3. What is antidote? What else might help?
i)a)nausea b)vomit c)severe generalized muscle cramps ii)IV calcium gluconate iii)musce relaxants
How does brown recluse spider bite present? what drug is helpful? When do you excise it surgically?
i)skin ulcer develops the following day, and surrounded by halo of erythema. ii)dabsone iii)should be delayed until full extent of damage is evident (up to 1 week). May need grafting
How to treat human bites? x2
dirtiest bites: i)irrigation and debridement in OR