Final review Flashcards
what does Etc02 measure?
measures exhaled carbon dioxide
what color indicates normal Etc02 on capnography?
yellow
what color indicates abnormal Etc02 on capnography?
purple
Potential causes of low C02? (4)
PE
DKA
anxiety
pain
potential causes of high C02? (2)
respiratory distress
respiratory failure from fatigue
what drugs can be given through an ETT?
N-Narcan A-Atropine V-Vasopressin E-Epinephrine L-Lidocaine
what meds for intubation?
paralytics (roc, sux, etomidate)
sedatives (midazolam)
when would we not give paralytics in an RSI?
if the patient is postcode, unconscious…
how do we tell if paralytics are at the appropriate level?
train of four
2/4 is normal
3 or 4/4 is too low a dose
0 or 1/4 is too high a dose
when do we suction a patient?
- only as needed
- if secretions are visible in the ET tube
- coughing
- dropped 02 sat
- visible secretions in mouth
what is the open suction technique?
requires sterile gloves
what is the closed suction technique?
does not require sterile gloves because it is enclosed in a sterile catheter
proper care of an intubated patient? (6)
- q2h oral care and PRN
- DVT prophylaxis
- Prilosec
- Gut feeds
- HOB >30 degrees
- handwashing
why do we do oral care for intubated patients?
to prevent breakdown and VAP
why do we do DVT prophylaxis on intubated patients?
because the intubated patients will not be moving
why do we give Prilosec to patients that are intubated?
to prevent ulcers
why do we do gut feeds for patients that are intubated?
patients that are intubated require protein to heal and recover to eventually get off of the vent
why do we elevate an intubated patient’s HOB to 30 degrees?
to prevent aspiration
what are the 4 modes of ventilation?
- CPAP
- BiPAP
- BiLevel
- ACVC
what is PEEP?
positive end-expiratory pressure: helps to keep alveoli open and improve oxygenation
what is a normal PEEP?
3-10 with 8 being the average
What are the signs of deterioration during ventilation? (7)
- color change
- apnea
- Pa02 <50 and PaC02 >60
- diminished breath sounds
- increased rales and rhonchi
- dysrhythmias
- change in LOC
what do we do if the ventilator has problems?
call RT and bag the patient
what is the rate for sinus bradycardia?
40-60bpm
tx for sinus brady?
-atropine, epi, transcutaneous pacing
when do we treat sinus brady?
if you are symptomatic
what is the rate of sinus tach?
over 100bpm
tx of sinus tach?
- fluids
- NSAIDS
- anxiolytics
- beta-blockers
how do we find the rhythm on a strip?
on a 6 second strip, take 1500/small boxes
what is the rate of SVT?
> 180bpm
tx of SVT?
vagal stimulation
adenosine (6mg rapid push, followed by flush)
can double dose and repeat in 1-2 minutes if no response
tx of a PAC?
usually benign, but can be treated with beta blockers
what is a PAC?
early contraction
what is Atrial Flutter?
-presence of sawtooth patterns with an atrial rate of 250-350 and a normal QRS.
tx of Atrial Flutter?
- slow the HR, antidysrhythmic drugs (amiodarone or lidocaine)
- cardioversion
- blood thinner due to blood stasis
what is atrial fibrillation?
disorganized atrial kicks with a normal QRS
tx of atrial fibrillation?
amidarone lidocaine cardioversion blood thinner MAZE procedure catheter ablation
what is a MAZE procedure?
uses cat scratches to form scar tissue and prevent fibrillation of the atrium
what is a PVC?
premature ventricular contraction
-causes a distorted QRS complex
when do you tx a PVC?
if they happen all the time
what is the tx of PVCs?
treat cause
- electrolyte replacement
- oxygen
- beta-blockers
- amiodarone
what is ventricular tachycardia?
a run of 3 or more PVCs with a rate of 150-250bpm
is a life-threatening rhythm!!!!
tx of pulsatile ventricular tachycardia?
underlying cause
- amiodarone
- cardioversion
tx of pulseless ventricular tachycardia?
ACLS protocol for cardiac arrest with a shockable rhythm
what are the 3 types of ventricular tachycardia?
- monomorphic
- polymorphic
- torsades de pointes
what is ventricular fibrillation?
deadly rhythm
no QRS noted
no effective CO
tx of vfib?
begin ACLS protocol for unshockable rhythm
what is asystole?
absence of ventricular electrical activity
flatline
tx of asystole?
ACLS protocol for unshockable rhythm
CPR and meds only
what is PEA?
pulseless electrical activity
rhythm shows on EKG, but no mechanical activity or pulse.
tx of PEA?
compressions, ventilation and meds
no shocking
what is a 1st-degree block?
long PR interval
who is a first-degree heart block normal in?
athletes
what does a 1st-degree block look like?
extended but stable PR interval
what is a 2nd-degree type 1 block?
a wenkebach, longer and longer PR interval, and then a QRS is dropped
what is the treatment for a wenkebach?
pacemaker or transcutaneous pacing
what is 2nd-degree type 2 heart block?
equal PR lengths blocked QRS
also known as mirror strip
tx of 2nd-degree type 2 heart block?
pacer, transcutaneous pacing
what is a 3rd-degree heart block?
no association between atria and ventricles
atrial and ventricular rhythm is regular
there is no association between the p wave and QRS
how serious is a 3rd-degree heart block?
very serious!!!!!
this is a deadly rhythm and can progress very quickly to a deadly rhythm
what disease is atrial flutter a precursor to?
CHF
tx for 3rd-degree heart block?
pacemaker or transcutaneous pacing
what is the intervention for NSR?
nothing: continue to monitor
tx for sinus Brady?
wake up pt, atropine, epi, pacing
tx of sinus tach?
treat the cause: pain, anxiety, fever, decrease caffeine
tx for SVT?
vagal stimulation, adenosine
tx of PAC?
betablockers
tx of a flutter?
amiodarone and beta blockers
tx of a fib?
amiodarone, cardioversion MAZE procedure, blood thinner
tx of PVC?
treat cause: electrolytes, oxygen, beta blockers
tx of vtach?
amiodarone, lidocaine for pulsatile
CPR and epi for pulseless
tx of vfib?
CPR, ACLS, epi, defibrillation
tx of asystole?
CPR, ACLS
tx of PEA?
CPR and ACLS
tx of junctional rhythm?
atropine, verapamil, pacemaker
tx of the 1st-degree block?
continue to monitor
tx of wenckebach?
atropine
temp pacer
tx of 2nd-degree type 2 block?
permanent pacer
tx of a 3rd-degree block?
transcutaneous pacing per ACLS protocol
normal range of CO?
4-6L/min
normal range of CI?
2.4-4.0L/min
normal CVP?
0-8
normal stroke volume?
60-100
normal SVR?
800-1200dynes
normal PVR?
30-100 dynes
what is shock?
tissue perfusion is inadequate to deliver oxygen and nutrients to support vital organs and cellular function
inadequate 02 delivery to meet cellular demands
causes of hypovolemic shock?
third spacing or blood loss
causes of cardiogenic shock?
left or right ventricular failure, MI
3 types of distributive shock?
- anaphylactic
- septic
- neurogenic
what is hypovolemic shock?
from fluid shifts (hemorrhage, burn, ascites, dehydration)
or fluid loss (trauma, surgery, vomiting, diuresis, diarrhea, DI)
not enough fluid or blood to meet bodies demands
what is cardiogenic shock?
impaired 02 delivery due to cardiac dysfunction
tx of cardiogenic shock?
milrinone
causes of obstructive shock?
PE, tension pneumo, cardiac tamponade
what is normal lactate?
below 2
what does elevated lactate indicate?
cellular hypoxemia, not enough oxygen o meet the bodies demands/
what is septic shock?
widespread infection-causing elevated WBC, fever and hyperglycemia
what is neurogenic shock?
loss of balance between sympathetic and parasympathetic nervous system
causes of neurogenic shock?
SCI, spinal anesthesia, CNS damage
causes of anaphylactic shock?
allergic reaction with systemic response causing widespread vasodilation
what happens in the initial stage of shock?
first cellular changes, include decrease aerobic and increase anaerobic
no s/s yet
what happens in the compensatory stage of shock?
attempt to compensate for decreased CO and decreased adequate 02 and nutrients. neural, hormonal and chemical responses
what happens in the progressive stage of shock?
end-organ failure due to cellular damage. usually GI and renal first, then cardiac, with loss liver and cerebral function
what happens in the refractory stage of shock?
irreversible damage
tx of shock?
- optimize 02 delivery
- decrease 02 consumption
ways to optimize 02 delivery?
- supplemental 02
- IV fluids
- inotropic drugs
- vasoactive drugs
- vasodilators
ways to reduce oxygen consumption?
- decrease total body work
- mechanical intubation
- paralytics
- sedation
- minimize pain and anxiety
- maintain body temperature
examples of inotropic drugs?
dopamine
dobutamine
milrinone
examples of vasoactive drugs?
epinephrine
levophed
dopamine
vasopressin
examples of vasodilators?
nitroprusside
nitroglycerin
examples of paralytics?
rocuronium
succinylcholine
etomidate
examples of sedation?
propofol
midazolam
examples of pain/anxiety medication?
fentanyl, morphine, tylenol, ativan
how to maintain body temperature?
Tylenol and fluids
what is SIRS?
systemic Inflammatory response syndrome
what is the criteria for dx of SIRS?
2 or more of the following
- temp (>100.4 or <96.8)
- HR >90
- respiratory rate >20
- WBC >12,000 or <4,000 or 10% immature neutrophil
what are the complications of SIRS?
- ARDS
- AKI
- shock
- MODS
what is SIRS a precursor to?
MODS
Criteria for dx of MODS?
altered fx of 2 or more organs
acutely ill pt
hemostasis cannot be maintained without intervention
what happens in stage 1 of MODS?
- increase volume requirements
- mild resp alkalosis
- oliguria, hyperglycemia, increased insulin requirements
what happens in stage 2 of MODS?
tachypnea, hypocapnia, hypoxemia, moderate liver dysfunction
what happens in stage 3 of MODS?
azotemia, increased acid-base disturbance
what happens in stage 4 of MODS?
vasopressor dependent
oliguria or anuria
ischemic colitis
lactic acidosis
how is the heart affected in stage 4 of MODS?
systolic BP <90
MAP <70
requires pressor support
how is the respiratory system affected in stage 4 of MODS?
Pa02 <250
PEEP >7.5
require mechanical ventilation
how is the renal system affected in stage 4 of MODS?
UOP <0.5mL/kg/hr despite fluid resuscitation
how is the hematologic system affected in stage 4 of MODS?
platelets <100,000
Pt/PTT high
how is the metabolic system affected in stage 4 of MODS?
low pH
high plasma lactate
how is the Hepatic system affected in stage 4 of MODS?
liver enzymes 2x normal level
how is the CNS affected in stage 4 of MODS?
altered LOC
low GCS
what is the basis for palliative care?
psychosocial and spiritual support
what is the difference between dopamine and dobutamine?
dopamine is a pressor and dobutamine is an inotrope
tx for CSF leak from LP?
blood patch
steps of a neuro assessment?
- LOC
- Motor response and strength
- pupillary response
- reflexes
- VS
- NIH
- GCS
what are the brain death tests?
- dolls eyes
- cold caloric
- corneal reflex
- EEG
- apnea test
s/s of increased ICP?
- decreased LOC
- HA, N/V
- seizure
- ICP monitor at foramen of monroe
how to manipulate CPP?
- pressors
- fluids
- CSF drain
- sedation
- osmotic agents
- positioning and paralytics
what is a normal pbt02?
20-40mmHg
seizure precautions?
standby or blow by 02 padded rails low bed loose clothing privacy
what happens in a partial simple seizure?
no impairment in consciousness
alterations in motor and sensory
what happens in partial complex seizures?
impaired consciousness and repetitive activities during a seizure
has a postictal state
what can a partial complex seizure evolve into?
tonic-clonic seizure
what is an absence seizure?
blank stare with impaired consciousness
most common in children
what is a tonic seizure
sudden onset with stiffness and extension of extremities
what is a clonic seizure?
rhythmic jerking motions that are either unilateral or bilateral
what is an atonic seizure?
body suddenly goes limp
what is a tonic clonic seizure?
also known as a Grande Mal seizure
stiffening and jerking motions
what is a postictal state?
sleepy, confusion, and amnesia
what meds can be used for seizures?
- Ativan
- Dilantin
- phenobarbital
- klonopin
- lamictal
- Depakene
- Tegretol
which med can cause gingival hyperplasia?
Dilantin
what is the main way to test for meningitis?
lumbar puncture
clinical presentation of meningitis?
nuchal rigidity
fever, positive kernig/brudzinski sign
petechial rash, HA
what medication for family members exposed to meningitis?
ciprofloxacin
what medication for inflammation r/t meningitis?
solumedrol (dexamethasone)
tx of encephalitis?
admit with HA and fever
cultures are almost always negative
what is Reyes syndrome?
caused by overuse of aspirin
-encephalopathy with hepatic, metabolic and neurologic failure
what is guillan barre?
follows respiratory infection
ascending paralysis with a breakdown of the myelin sheath
requires longterm PT
concern in loss of respiratory drive
what is an ischemic stroke?
clot form heart condition or DVT
tx of ischemic stroke?
within 3 hours TPA
after 3 hours requires mechanical extraction
how to determine if the stroke is ischemic or hemorrhagic?
CT w/o contrast
what is a hemorrhagic stroke?
bleeding into brain tissue, ventricles, or subarachnoid space
what is Parkinson’s?
progressive movement disorder from loss of cells in substantia nigra
what are the cardinal signs of Parkinson’s?
requires 2/4 for dx
- tremor
- rigidity
- bradykinesia
- postural instability
tx of Parkinson’s?
Levodopa
what is bells palsy?
unilateral inflammation of 7th CN causing facial paralysis or weakness and ptosis with recovery in 3-5 weeks
what is myasthenia gravis?
autoimmune disorder affecting the myoneural junction; causing weakness in face, throat, or body, with no effect on sensation
how is MG diagnosed?
tensilon test
edrophonium is injected and if the pt has an increase in muscle strength, they have MG
meds for MG?
- mestinon
- prostigmine
- immunosuppressants
- IVIG
what is MS?
progressive demyelination with plaque development in the brain
tx of MS?
delay the progression of the disease, and prevent acute exacerbations- tx is symptom relief
what is trigeminal neuralgia?
5th cranial nerve inflammation-causing involuntary contraction of facial muscles which is triggered by stimulation
what is a primary injury?
the injury at the time of impact
what is a secondary injury?
complications from the primary injury caused by inflammation
how can we prevent secondary injury?
steroids and anti-inflammatories
what are the 3 types of skull fractures?
linear, basilar, and depressed
what are the types of spinal cord injuries?
concussion, contusion, laceration, transection, and hemorrhage
what is a complete spinal cord injury?
total loss of sensation and motor function
what is the marker for a basilar skull fracture?
battle sign, bruising behind the ears
what is an incomplete spinal cord injury?
varying degrees of sensory and motor function disruption
what is autonomic dysreflexia?
life-threatening condition after a spinal cord injury caused by either a full bladder, rectum…. causing a hypertensive crisis with HA, sweating, tachycardia and HTN
identifying features of AML?
blast cells >30% and is usually after a previous cancer tx; especially Hodgkins lymphoma
identifying features of CML?
Philadelphia chromosome; tx is Gleevec
identifying features of ALL?
Blast cells >30%, and seen in young children and the elderly
Identifying features of CLL?
enlarged lymph nodes, hepatomegaly and splenomegaly with B symptoms
Identifying features of Hodgkin Lymphoma?
- Reed Sternberg cells, originate in a single node then spread to other lymph nodes.
- Agent Orange and Epstein Barr virus are some causes
- Highly curable but can have new cancers after, like AML.
identifying features of Non-Hodgkin Lymphoma?
- usually multiple sites
- late diagnosis
- can involve CNS
- monoclonal antibodies are tx
what is DIC?
dysfunction in clotting and bleeding. platelets and fibrinogen decreased. PT/PTT/d-dimer is increased
what two illnesses makeup COPD?
chronic bronchitis and Emphysema
what is chronic bronchitis?
-cough and sputum production at least 3 months in 2 consecutive years; associated with obesity, frequent cough, and accessory muscle use
what is emphysema?
overdistended alveoli, barrel chest, and pursed-lip breathing are present. hyper resonant percussion of the chest
what percent of URIs are viral?
90%
what is OSA?
obstructive sleep apnea
what is the tx for pneumonia?
zithromax, steroids, no cough suppressants, and encourage fluids
What are the s/s of TB?
cough more than 3 weeks, weight loss, night sweats
tx of TB?
long term antibiotics >6 months
S/s of a PE?
dyspnea, tachycardia, chest pain, anxiety
how fast can death occur with a PE?
within one hour of onset of symptoms
tx of PE?
lyse clot and prevent the formation of a new clot
what do chest tubes do?
promote lung expansion
what sex has HIV and AIDS more often?
males; 5:1 ratio
tx of HIV/AIDS?
outpatient tx generally
how is HIV/AIDS transmitted?
- blood
- seminal fluid
- vaginal secretions
- breastmilk
tx of HIV/AIDS?
anti-retroviral medications
who more often has RA?
females 4:1 and males 2:1
what is RA?
autoimmune reaction in synovial tissue causing destruction of bone and cartilage. results in joint pain, swelling, and deformity.
what is SLE?
systemic lupus erythematosus
what is the main symptom of SLE?
butterfly rash
what is the goal of tx of lupus?
reduce acute episodes
what is scleroderma?
excessive accumulation of collagen in tissues
what is Reynaud’s syndrome?
decreased perfusion to tips of fingers