Things I Should Probably Know Flashcards
What abnormal lab values confirm the diagnosis of HELLP?
- Urine protein consistent with pre-e
- Schistocytes on blood smear
- Platelets less than 100k
- TBili greater than 1.2
- AST greater than 70
What is HELLP?
Believed to be a form of pre-E
Hemolysis (H)
Elevated liver enzymes (EL)
Low platelet count (LP)
APGAR assesses which 5 things?
Neonatal HR Resp effort Muscle tone Reflex irritability Color
0-2 points per each category, 10 is best score
Abruptio placentae
Onset of symptoms: sudden and intense bleeding with pain
Bleeding may be vaginal or concealed
Uterine tone is FIRM
Placenta Previa
Onset of symptoms: asymptomatic or painless bleeding
Vaginal bleeding
Uterine tone is soft and relaxed
Metformin is contraindicated with?
IV contrast (hold metformin for at least 48 hours after receiving IV contrast)
Cranial nerve 1
Olfactory
Controls sense of smell
Cranial nerve 2
Optic
Central and peripheral vision
Cranial nerve 3
Oculomotor
Constriction of pupils
Cranial nerve 4
Trochlear
Downward eye movement
Cranial nerve 5
Trigeminal
Face
Cranial nerve 6
Abducens
Sideways eye movement
Cranial nerve 7
Facial
Movement and expression
Cranial nerve 8
Vestibulocochlear
Controls hearing
Cranial nerve 9
Glossopharyngeal
Tongue and throat
Cranial nerve 10
Vagus
Sensory and motor
Cranial nerve 11
Accessory
Head and shoulder movement
Cranial nerve 12
Hypoglossal
Tongue position
Nasal fracture
Most common of all facial fractures and least likely to need specialist consult
Orbit rim and blowout fracture
Fractures of orbital floor or lateral and medial orbital walls; occur from direct blow to orbit such as from a baseball or fist
Mandibular fractures of the lower jaw
May be singular or multiple
Maxillary fractures
Fractures of the upper jaw
Le Fort 1, 2, and 3
Le Fort I
Horizontal fracture, separates teeth from upper structures
“Floating palate”
Le Fort II
Pyramidal fracture; teeth are at the base of the pyramid, fracture passes diagonally along the lateral wall of the maxillae sinuses, apex of pyramid is the nasofrontal junction
“Floating maxilla”
Le Fort III
Craniofacial disjunction transverse fracture line passes through the nasofrontal junction, maxillofrontal suture, orbital wall, zygomatic arch, and zygomaticofrontal suture
“Floating face”
“Floating palate”
Le Fort I
“Floating maxilla”
Le Fort II
“Floating face”
Le Fort III
Zygomaticomaxillary complex (tripod) fractures
Simultaneous fracture of the lateral and inferior orbital rim, the zygomatic arch, and lateral maxillary sinus wall
Occurs from direct blow to the lateral cheek
Blast lung injuries (BLI): clinical triad
Apnea
Hypotension
Bradycardia
The 6 P’s
Pain Paresthesia Pallor Paralysis Pulselessness Poikilothermia
Compartment syndrome: compartment pressure
Within 20-30mmHg of mean arterial pressure
Non displaced fracture
Broken area of bone remains in alignment
Optimal condition for reduction and healing
Displaced fracture
Broken areas of bones are not aligned
May require manual or surgical reduction including hardware for fixation
Transverse fracture
Horizontal break in a straight line across the bone occurs from a force perpendicular to the break
Oblique fracture
Diagonal break occurs from a force higher or lower than the break
Spiral fracture
Torsion or twisting break around the circumference of the bone
Common in sports injuries and abuse
Comminuted fracture
Break is fragmented into 3 or more pieces.
More common in people older than 65 and those with brittle bones
Compression fracture
Break is crushed or compressed, creating a wide, flattened appearance
Frequently occurs with crush injuries
Segmental fracture
Two or more areas of the bone are fractured, creating a segmented area of “floating” bone
Greenstick fracture
Type of incomplete break
Bone is not completely separated and bends to one side; common in children due to softer bones
Avulsed fracture
A “chip” fracture displaced small segments of bone from the main bone at the area of tendon/ligament attachment. Results from tension/pulling of the tendons/ligaments away from the bone
Torus/buckle fracture
Incomplete fracture with bulging of cortex, common in children
Impacted fracture
Ends of the bone are impacted or “jammed” into each other from forceful impact
Salter-Harris fracture
Growth plate fracture
Classified as I-V
Estimated blood loss from pelvic fractures
1.5-4.5L
Estimated blood loss from hip fracture
1.5-2.5L
Estimated blood loss from femur fracture
1-2L
Estimated blood loss from humerus fracture
1-2L
Fractures with risk for fat emboli (4)?
Comminuted fractures of femur or tibia
Fractures of ribs or pelvis
Trephination
Boring of hole into the nail bed to relieve the underlying pressure
Rule of 9’s
For calculating TBSA for burns
Face: 9% (4.5% front, 4.5% back) Chest/abd front: 18% Back: 18% Arm: 9% EACH (4.5% front, 4.5% back) Groin: 1% Legs: 18% EACH (9% front, 9% back)
1st degree burn
Affects DERMIS only
Reddened area
Blanches easily with light pressure
Think sunburns
2nd degree burns: superficial partial thickness
Blanches with pressure
Development of vesicles or bullae in 24 hours
Often appear wet
2nd degree burns: deep partial thickness
Color is white or red
Does NOT blanch
Often appears dry
Development of vesicles or bullae
3rd degree burns
Vary in appearance: white, red, black and charred, brown and leathery
No pain or reduced pain d/t nerve damage
No development of vesicles or bullae
Hypovolemia (hypotension or whole body edema)
Metabolic acidosis
Rhabdo
Hemolysis
AKI
Parkland formula
Calculates fluid resuscitation for burns
2-4mL x TBSA (%) x weight in kg
Give 50% in first 8 hours, remaining in next 16 hours
—formula time starts at the time the burn happened
USE LACTATED RINGERS NOT NS
What kind of salve should be used on burns?
Silver salve
Patient sustained burns. Burns are eschar and constricting. What procedure is indicated?
Escharotomy
Which form of intubation is to be avoided in ingestion & inhalation burns?
Nasotracheal intubation
Consider cricothyrotomy
What should not be administered before antivenom in snake bites?
Blood products
Keraunoparalysis
Weakness in limbs following a lightning strike
Lightning strike differs from generated electric energy in that it does not usually cause which 3 things?
Burns
Rhabdo
Internal organ/tissue damage
Decon: radiation
Use radiation meter to monitor progress
Remove clothing and debris
Decon skin
Clean wounds before intact skin using NS
Internal decon for radiation: which 3 drugs are used?
Potassium iodine (KI) Prussian blue Diethylenetriamine pentaacetate (DTPA)
Prussian blue
Used for internal radiation decon
Removes radioactive cesium and thallium from body.
Radioactive material is passed in the feces
Oral med
Diethylenetriamine pentaacetate (DTPA)
Removes radioactive plutonium, americium, and curium from the body
Radioactive material is passed in the urine
Can be given IV or as an inhalant for those who have inhaled radiation
ABG analysis in submersion injuries reveals?
Significant metabolic acidosis (pH < 7.35 and HCO3 < 22)
Resuscitation in drowning victims starts with _________ _________ and not ________________.
Rescue breathing; compressions
Treatment of __________ is the main concern in submersion injuries.
Hypoxemia