Acute Care 3 Flashcards
WBC
Normal 5-10 x 10^9 /L
Trending upward:
Leukocytosis > 11 x 10^9/L
Bacteria infection, stress/trauma, allergy, smoking, pneumonia, neoplasm
Trending downward:
Leukopenia < 4 x 10^9/L
Bone marrow failure (aplastic anemia), radiation/chemo, HIV, viral disease
< 5 with fever : HOLD PT
> 5 light exercise, progress as tolerated
CPAP
Constant airway pressure
Spontaneous ventilation
Indications:
Mild/moderate sleep apnea
Cardiogenic APE
PO abdominal surgery
Droplet precautions
Transmission involves contact of conjunctiva or mucous membranes in nose or mouth w/ large-particle droplets
Influenza, meningitis, mumps, rubella, certain types of pneumonia
STD precautions + mask w/ or w/o face shield
Hospital- code silver
Active shooter
ICU PT indications
Goals to determine…
Goal to determine stability for ambulation, transfers, stairs, ADLs, assistive device needs, tolerance to activity, PLOF
D/C planning - asking Q (live alone, stairs, etc) - May ask family if pt on vent
ICU - PT indications
Getting pt movement prevents:
Prevents deconditioning
Reduces risk of atelectasis-> consolidation-> pneumonia
Reduces risk of bed sores and DVT
FiO2 of room/ambient air is __%
Each liter increase with supplemental O2 increases FiO2 by appx __%
Low flow FiO2 …
High flow FiO2….
Maximum of __% used for vents to avoid O2 toxicity
20.9% (78% nitrogen; 1% CO2)
Each liter of supplemental O2 increases FiO2 by ~ 4%
Low flow is approximation- varies with RR and TV
High flow is precise delivery, does NOT vary with RR and TV
Max 60%
Type III
Respiratory failure
Perioperative
Atelectasis
Often results in Type I or II
If MI diagnosed must wait for 2 consecutive downtrending values before initiating PT
Cardiac troponin (cTn) Cardiac creatine kinase (CK-MB or CPK-MB)
PaO2
75-100 mmHg
Normal value changes with age
70-70 rule
After 70- each decade value decreases by 10
Neurological considerations
Red/Yellow/Green
Delirium
Delirium tool (CAM-ICU)….
(-) = green
(+) and able to follow simple commands-
Green: in-bed
Yellow: out-bed
(+) and unable to follow commands = yellow
Respiratory acidosis
Reduction in alveolar ventilation
Results in more CO2 in blood
Body compensates by producing more HCO3 (bicarbonate)
pH =< 7.35
PaCO2 => 45 mmHg
Alkalemia
pH > 7.45
Anesthesia- Effects by system
Respiratory
Hypoventilation
Decreased ventilation drive
Aspiration
PE
Hospital codes that can be initiated by therapy team
Code blue
Rapid response
Stroke alert
Na+
Regulates fluid volume and impt in nerve conduction
Normal 134-142 mEq/L
Hyponatremia: low Na+
< 130
Monitor vitals 2ndary to risk for orthostatic hypotension
Hypernatremia: common in elderly who don’t drink enough water
> 145
Seizure precautions for pt w/ past hy
Acute care exam - initiation
Always check w/ nurse about any new developments or info on the pt that may not have been in your chart review
Survey the room during introduction
Subjective info:
PLOF and work/school/activity- fall history
Caregiver support and availability
Home situation and barriers- stairs, where bedroom and full bathroom
Availability of AD
Pt/caregiver d/c plans (may not match w/ each other or yours)
Hypoglycemia s/s
Clammy skin/Sweating Shaking Delirium Vision changes HA Tachycardia Weakness Lightheaded LOC Seizures
Neurological considerations
Red/Yellow/Green
Spinal precautions (pre-clearance or fixation)
Red
A disturbance of consciousness with inattention accompanied by a change in cognition or perceptual disturbance that develops over a short period of time (hours to days) and fluctuates over time
Delirium
IABP- considerations and safety measures
Limit shoulder flexion on side of IABP placement to 90* or level of comfort (<90*)
Leveling the arterial line connected to IABP when ambulating
Ensure that the PT has training to leave ICU with patient
Never take patient to area where there are no outlets if battery starts to die (check battery frequently)
If you pull out a line…
Apply pressure
Have patient sit
Call nurse
Home with referral to outpatient therapy
Can the pt drive?
What kind of assistance still needed?
Often, a significant gap exists between hospital d/c and start of care in OP- HEP/education critical!
Rapid response
Goal: intervene before onset of injury, respiratory arrest or cardiac arrest
HR > 140 or HR < 40 RR > 28 or RR < 8 Systolic BP > 180 or < 90 Urine output < 50 cc over 4 hours Staff, family or visitor has significant concern about pt condition
Respiratory parameters-
Red/Yellow/Green
Percutaneous Oxygen Saturation
=> 90% green
< 90% yellow: in-bed /red: out-bed
Hct
Hematocrit- % by volume RBC
Trending downward (anemia)
Low critical value (<15-20%) Cardiac failure or death
< 25% symptom based approach
< 25% HOLD PT- essential daily activity only
< 25-35 PT permitted- ambulation and stairs, light aerobics, light weights (1-2 lbs)
> 35% resistance and moderate aerobic exercise
Trending upward (polycythemia) High critical value (>60%) spontaneous blood clotting heart defects, severe dehydration, hypoxia, smoking
CPAP
Continuous positive airway pressure
Weaning mode
Completely spontaneous
Positive pressure maintained to prevent alveolar collapse
Usually 5-7 cmH2O
Cardiovascular considerations
Red/Yellow/Green
Stable tachyarrhythmia
Ventricular rate > 150 bpm
Yellow: in-bed
Red : out-bed
Ventricular Rate 120-150 bpm
Yellow
Chest tube- air bubbles in tank
Stop treatment and notify nurse
Bubbles = air leak
Inspiratory muscle training is contraindicated during ___.
At this juncture resting the respiratory muscles indicated.
Acute respiratory failure
B of SBAR
Background
Pt reason for and date of admit
Significant medical hy
Impt meds
(Admit 5/20/19 w/ chest pain and decreased mobility)
Respiratory acidosis
pH?
PaCO2?
HCO3-?
pH decrease < 7.35
PaCO2 increase > 45
HCO3- normal
Increased H+ due to excessive CO2 and decreased alveolar ventilation
Anesthesia- Regional
Pt is awake, usually given additional drugs to decrease awareness
Ex: spinals or epidurals
Epidurals fall into “local” category- lidocaine
Often delivered in combo with opioids/narcotics (such as fental) to decrease required dose of local anesthetic
Effects of general anesthesia
Side effects: Nausea Vomiting Sore throat Confusion Muscle aches Itching Hypothermia
Serious complications:
Delirium, Cognitive dysfunction, Malignant hyperthermia
Orthostatic intolerance
Hypotension associated with a change in position, typically when moving supine to stand
Symptoms may include: dizziness, change in mentation, postural instability, and possibly loss of consciousness
Causes: depletion of blood volume; impairment of baroreflex-mediated vasoconstriction
Early mobility will reduce the risk of it
PT may be 1st to identify it- alert med team
Ca2+ levels tending down
What expect?
Confusion
Seizure
Fatigue
Considerations and safety measures when mobilizing on ECMO
Ambulatory/mobility team (PT, RT, RN, ECMO clinician, cardiologist m, surgeon, and any extra hands)
Cannulation sites
Equipment
Unexpected outcomes
Center specific protocols
Other considerations
Red/Yellow/Green
Patient febrile with temp exceeding acceptable max despite active physical or pharmacological cooling mgmt
Yellow
Hyperchloremia
Causes: dehydration, kidney disease
S/S: can cause metabolic acidosis
CMV : Controlled mandatory ventilation
Ventilator has total control of FiO2, tidal volume, flow rate
Patients likely sedated/pharmacologically paralyzed
No respiratory effort by pt
Doppler MAP
Due to pump being continuous not pulsatile
Difficult to get accurate pulse or cuff BP
MAPs should be between 60-80 mmHg
When taking MAP with Doppler you hear 1 sound that is the MAP (mean arterial pressure)
(LVAD)
Hypermagnesemia
Typically renal insufficiency
Normally kidneys excrete large amounts
> 2 mmol/L vasodilation and NM blockade
4 mmol/L nausea, lethargy, weakness, respiratory failure, paralysis, coma, hypoactive tendon reflex
DIC
Disseminated intravascular coagulopathy
Overactive proteins/clotting factors
Causes: severe trauma, liver failure, transfusion failure, sepsis, venom poisoning, cancer
Small clots form - can block vessels supplying organs, leading to failure
Also clotting factors get “used up” and can have serious uncontrolled bleed
MIP
Maximum inspiratory pressure
Hyperglycemia s/s
Frequent urination
Increased thirst
Severe fatigue
Respiratory alkalosis
pH?
PaCO2?
HCO3-?
pH increases > 7.45
PaCO2 decreases < 35 mmHg
HCO3- normal
Decreased H+ due to decrease CO2 when too much blown off
Step down units that bridge between ICU and general
Patient to nurse ratio between ICU and general care
Transitional units
SIMV : Synchronous intermittent mandatory ventilation
Rate and tidal volume set by RRT
Ventilator assists pt w/ breath of needed
Pt can breathe spontaneously on own between ventilator breaths
Used as a weaning mode
SIMV 2 = pt almost breathing independently
SIMV 15 = mostly relying on ventilator
Low flow O2 delivery-
Simple face mask
35-55% FiO2 at 5-10 min/flow
Easily portable w/ portable O2
Makes talking/eating difficult
Respiratory alkalosis
Elevation in alveolar ventilation
Results in less CO2 in blood
Body compensates by producing less HCO3 (bicarbonate)
pH => 7.45
PaCO2 =< 35 mmHg
Cardiovascular considerations
Red/Yellow/Green
Bradycardia
Red : if requires pharmacological treatment OR awaiting emergency pacemaker insertion
Yellow : not requiring pharmacological treatment and Not awaiting emergency pacemaker insertion
ICU delirium and mortality
Independent predictor of higher 6-month mortality and longer hospital stay
Hypokalemia
Trending downward < 3.5 mEq/Lm
Causes: NG suctioning, diuretics, diarrhea, Cushing’s
S/S: flattened T-wave, arrhythmias, clammy skin, muscle tetany, weakness, abdominal distention, respiratory failure
<2.5 collaborate with inter professional team on proceeding
Possible discharge dispositions
Home with no further therapy needed
Home with home health PT
Home with referral to outpatient therapy
Post-acute facility placement
(IRF, SNF, LTAC, nursing home/LTCF)
Wells DVT score
> 2.0 : High probability
1.0-2.0 : moderate probability
< 2.0 : low probability
1 point each:
- Active cancer
- Calf swelling >=3 cm (10 cm below tibial tuberosity)
- Swollen unilateral superficial veins
- Unilateral pitting edema
- Previous DVT
- Swollen leg
- Tenderness along deep venous system
- Paralysis, paresis, or immobilization of LE
- Bedridden >=3 days; major surgery 12 weeks
- 2 points for : alternative diagnosis at least as likely
DNR
Usually only applicable to hospital
Usually has s colored bracelet to identify
No CPR etc - don’t initiate code blue
Some new terminology proposed to avoid confusion:
AND- allow natural death
AND-I allows specified interventions that can be performed
Chest tube
Reservoir must be kept lower than insertion site
Respiratory parameters-
Red/Yellow/Green
Respiratory Rate
=< 30 bpm: green
> 30 bpm: yellow
PPN- partial parenteral nutrition
Peripheral veins
Neurological considerations
Red/Yellow/Green
Vasospasm post-aneurysmal clipping
Green- in-bed
Yellow: out-bed
4 lab values indicating pt not ready for PT
- Hematocrit <25%
- Hemoglobin <8 g/dL
- Platelets <20,000/mm^3
- Anticoagulation INR >=2.5-3.0
Anesthesia- Effects by system
Psychomotor function
Time to regain consciousness
Delirium
Personality changes
Memory loss
HbA1C
Glycated hemoglobin
Based on attachment of glucose to HgB within RBC
RBC lives ~3 months- so A1C reflects average blood glucose levels over past 3 months
Normal <5.7%
Pre-diabetic 5.6-6.4%
Diabetic > 6.5%
Well controlled DM is at least 7%
Increased H+ due to excessive CO2 and decreased alveolar ventilation
Respiratory acidosis
Anesthesia- general
Propofol is one of most commonly used
Pt unconscious with no awareness and no sensation
Majority of effects gone within 24 hours, however complete resolution can take week(s)
Other considerations
Red/Yellow/Green
Femoral sheaths
Yellow: in-bed
Red: out-bed
Hospital- code pink
Abducted child/baby
Mechanical ventilation
Terms
PEEP
Positive end-expiratory pressure
Metabolic acidosis
pH?
PaCO2?
HCO3-?
pH decreases < 7.35
PaCO2 normal
HCO3- decreases < 22
Increased H+ due to a drop in HCO3-
Cardiovascular considerations
Red/Yellow/Green
IV antihypertensive therapy for hypertensive emergency
Red
Neurological considerations
Red/Yellow/Green
Level of consciousness
Drowsy, calm or restless (RASS -1 to +1) = green
Lightly sedated or agitated (RASS -/+ 2) = yellow
Unrousable or deeply sedated (RASS < -2)
Yellow: in-bed
Red: out-bed
Very agitated or combative (RASS >+2) = red
Hospital- code gray
Severe weather
Mg2+
Magnesium
Crucial for normal NM activity
Normal 0.7-1.0 mmol/L
ICUAW: ICU-acquired weakness
Muscle weakness that develops during ICU stay
Other items include critical illness myopathy/polyneuropathy
33% of all pt on ventilators
50% of all pt admitted w/ severe infection (sepsis)
Up to 50% of pt who stay in ICU for at least 1 week
May take more than a year to fully recover, making ADLs difficult and increasing burden of care
Anesthesia- Effects by system
Cardiovascular
Hypotension Hypertension Dysarrhyrhmia Increased risk for MI DVT
pH
- 4
7. 35-7.45
Main components of EMCO circuit
Tubing
Blood pump
Gas exchange
Heat exchange
Oxygen toxicity
Occurs when partial pressure of alveolar O2 remains elevated above normal levels prolonged periods of time (> 24 hours)
Supraphysiologic concentration of O2 can cause a state of hyperoxia
Development of reactive O2 species (ROS) - damaging cells/tissues; inflammation w/ diffuse alveolar damage
Absorption atelectasis
Highest patient to nurse ratio
General care (Acute)
PT- prothrombin time
Time it take plasma to clot
Normal range 11-12.15 sec
1-2x normal = therapeutic
2-3x normal = “risk of bleeding”
Nasogastric rube
Drain
Feeding tube
Head at 45* or greater to prevent aspiration
(Ask nurse if can be turned off during intervention)
Hyperkalemia
Trending upward > 5.5 mEq/L
> 5 pt at risk for cardiac issues
Might exhibit muscle weakness
Causes: severe cell destruction, redistributes K+ from ICF->ECF
S/S: flaccid paralysis m, peaked T-waves, shortened Q-T wave intervals
Arterial blood gases
Measure acidity and levels of oxygen, CO2, and bicarbonate within blood
Qualifies magnitude of gas exchange abnormalities
Identify type of respiratory failure
pH 7.35-7.45
PaO2 75-100
PaCO2 35-45
HCO3- 22-26
Glucose
Normal 70-100 mg/dL for non-diabetics
Glucose target 140-180 for most pt in non critical care while hospitalized
Hypoglycemia <70 mg/dL
Hyperglycemia > 200 mg/dL
Failure to correct hyperglycemia (> 240) can result in life threatening ketoacidosis
Low flow O2 delivery-
Non-rebreather
80-90% FiO2 10-15L/min
Works similar to partial rebreather- but one-way valve that exhalation onto bag- resulting in higher concentration in bag
Only used in seriously ill pts, and possibly during exercise in pt with ESLD
Hospital- code red
Fire
Safety in acute care - establish appropriateness of care
- verify order and precautions
- chart review to determine preliminary precaution list and plan
- VITALS
- key discussion w/ other providers - esp nursing and MD
- anticipate difficulties/challenges in patient mobility/status, and plan accordingly
Assemble require assistance and items
Two patient identifiers (name and DOB)
Other considerations
Red/Yellow/Green
Suspicion of active bleeding or increased bleeding risk
Green: in-bed
Yellow: out-bed
Hospital- code black
External emergency
Low flow O2 delivery-
Partial-rebreather
40-60%FiO2 10-15L/min flow
Reservoir attached to mask
Air entering bag from trachea and primary bronchi, where no gas exchange occurs
Pt rebreathes O2 “just expired”
Easily mobile
Other considerations
Red/Yellow/Green
Active hypothermia management
Yellow
RASS
Richmond agitation-sedation scale
Response to verbal and physical stimuli
Post-op activities/exercise should…
Promote confidence in you
Don’t hurt
Give pt some control
Promote upright posture
Consider the incision
Avoid stretching/stressing incision
Avoid unilateral stress especially with abdominal and thoracic incisions
Offer incentives- ice chips, warm blanket, etc
Creatinine
Waste product of muscle metabolism of creatine
Usually relatively constant and related to muscle mass
Filtered but not reabsorbed by kidneys
Elevation can indicate kidney issues, dehydration or rhabdo