Key Concepts Flashcards
Moderate stridor
Treat with racemic
Mild strider
Treat with cool mist (hydration) or racemic
Severe/marked stridor
Intubate pt; tracheostomy; or send to surgery to establish a tracheostomy
Foreign body suspected
Perform bronchoscopy
Friction rub (pleural friction rub/grating sound)
Treat with steroids for inflammation and antibiotics for infection
Seen in TB, pulmonary infarction, and pleurisy
Pulsus paradoxus
Associated with significant air trapping such as in severe asthma or status asthmaticus
Minimum spontaneous Vt
5 mL/kg
If Vt < 5 mL/kg
Need some ventilator support (if on vent, pt not eligible for weaning)
If Vt < 3 mL/kg
EMERGENCY
Need full ventilatory support
Minimum Vital Capacity
10 mL/kg or will need vent assistance
Maximum expiratory pressure (MEP)
At least 40 cmH2O
Relates to ability to clear secretions
Tracheal deviation towards the problem
Pulmonary fibrosis
Atelectasis
Lobectomy
Tracheal deviation away from the problem
Tension pneumothorax
Hemothorax
Pleural effusion (very large)
Normal heart sounds
S1 or S2
S3 and S4 heart sounds means?
Abnormal and indicate cardiac dysfunction
Order echocardiogram!
S3 is associated with what illness?
CHF
S4 is associated with what illness?
Cardiomegaly
Normal urine output
40 mL/hour
In a pt’s history, objective info are considered…
Signs of illness
In pt’s history, subjective info indicates…
Symptoms (pt must be able to communicate)
Smoking pack years equation
(# of years) x (avg number of packs per day smoked)
Orthopnea
Inability to sleep flat - requires one or more pillows/sleeps in a chair
Related to CHF or fluid problems
If pt feels angry or combative, what’s the problem?
Electrolyte imbalance
If pt feels anxious or panic, what’s the problem?
Hypoxemia, pneumothorax, severe asthma
If pt feels euphoria, what’s the problem?
Ingestional error (drug overdose)
If pt feels depressed, what’s the problem?
Pt recently informed of disease
What is the SA node?
Pacemaker of the heart
Best ECG lead to determine left ventricle
Lead V5
Best ECG lead to determine overall electrical condition of the heart
Lead II
How fast is the heart beating in a flutter?
Greater than 200 bpm
What does fibrillation mean in ECG?
Very fast
Can’t count heart rate
Heart rate estimation from ECG tracing
Pick consistent wave form
Count how many large boxes from one wave to the next wave (ex: first R wave to the next R wave)
Equation: 300/(#of large boxes)
Memorize alternate rate estimation!!!
300-150-100-75-60-50
ECG rhythms:
Sinus rhythm
All bumps are there, especially “p” wave
ECG rhythms:
How do you treat sinus tachycardia?
Treat with oxygen
ECG rhythms:
How do you treat sinus bradycardia?
Stimulate heart with atropine
ECG rhythms:
What do you do with occasional premature ventricular contraction (PVC)?
Treat with oxygen
ECG rhythms:
What do you do with frequent premature ventricular contraction (PVC)?
Treat with Lidocaine
ECG rhythms:
Steps to treat asystole
- Confirm in two chest leads
- Treat with chest compressions!!!!!
- Epinephrine
- Atropine
Do you shock asystole?
NO!!
ECG rhythms:
How do you treat ventricular fibrillation (v-fib)?
Treat with defibrillation
ECG rhythms:
How do you treat ventricular tachycardia (v-tach)?
Treat with defibrillation if no pulse
Which ECG rhythms are deadly and constitutes an emergency?
V-tach and V-fib
Heart blocks:
1st degree
Distance btwn beginning of “p” wave to beginning of “QRS” complex (p to r interval) is > 20 sec (five small boxes/one large box)
May treat with atropine - not extremely dangerous
Monitor pt
What drug do you use to treat bradycardia?
Atropine
Heart blocks:
2nd degree
“P” wave present, but occasionally miss corresponding QRS complex (missing heart beat)
May treat with atropine or pacing
Hook up to pacemaker but don’t turn on
Heart blocks:
3rd degree
No obvious coordination btwn “p” wave and QRS interval. Unpredictable from one moment to the next and can’t exactly identify waves
Deadly!
Turn on pacemaker
How does electricity normally flow through the heart?
Flows down and to the left
What two ways can an axis deviate from normal?
Hypertrophy
Infarction
Hypertrophy will cause an axis to deviate ___ the direction of the hypertrophy.
Toward or Away?
Toward
Infarction will cause an axis to deviate ___ from the infarct tissue.
Toward or Away?
Away
State the 3 MI
Myocardial ischemia
Myocardial infarction
Myocardial injury