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Acute biological-crisis ppt lecture
1.
2. 1. Discuss different Acute Biologic Crisis conditions together with the roles
and responsibilities of the nurse in the care of the following.
•Cardiac failure - Acute Myocardial infarction
• Acute pulmonary failure
• Acute renal failure
• Stroke
• Increased Intracranial pressure
• Metabolic emergencies – e.g. DKA/HHNK
• Massive Bleeding
• Extensive surgeries
• Extensive Burns
• Emerging illnesses (SARS, Avian Flu)
• Multiple injuries
2. Use critical thinking in the management of these cases
3. Familiarize with the different treatment modalities and equipments used
3. Acute Biologic Crisis
Condition that may result to patient
mortality if left unattended in a brief
period of time.
Condition that warrants immediate
attention for the reversal of disease
process and prevention of further
morbidity and mortality.
4. 1. Coronary Artery Disease &
Acute Coronary Syndromes
Most Common cause of cardiovascular
disability and death.
It refers to a spectrum of illnesses that
range from the least life threatening to
the most life threatening acute coronary
syndrome(AMI/ Heart attack).
5.
6. Coronary Artery Disease &
Acute Coronary Syndromes
Incomplete occlusion of the
coronary arteries lead to Angina
(ischemia)
Complete occlusion of the coronary
arteries lead to Myocardial Infarction
The heart will pump harder to meet
the O2 demand leading to Congestive
8. Modifiable Risk Factors of CAD/
tachycardia
ACS
Stress
Diet
norepinephrine
Na, cholesterol & fat
Cigarette Smoking
Hypertension
CVD
Circulation, maintains vascular tone&
enhances release of chemical activators
that prevent blood clotting
Exercise
Alcohol
vasoconstriction
Vasoconstriction &
spasm of arteries.
20 ml = vasodilation
As a result of
Myocardial
demand
30 ml = vasoconstriction
Systemic vascular
resistance
9. Modifiable Risk Factors of CAD/ ACS
Accumulation of fatty
plaques
Hyperlipidimia
Diabetes Mellitus
Obesity
Glucose cannot be transported into the
cells due to insulin insufficiency or
Increases resistance to insulin
Increase cardiac workload
Personality Type or
Type A – competitive,
Behavioral Factors toimpatient, aggressive
has been correlated CAD
Contraceptive Pills
10. Cardiovascular Assessment
Chest Pain
Most common
Due to Ischemia or MI
Precipitated by stress or can be relieved
by Nitroglycerin (NTG)
In MI, it is more intense, unrelated to
activities and can’t be relieved by NTG
If it occurs during breathing, suspect
respiratory problems
11. Rough diagram of pain zones in myocardial
infarction (dark red = most typical area, light
red = other possible areas, view of the
chest).
12. Cardiovascular Assessment
Dyspnea
subjective feeling (inability to get enough
air).
Dyspnea on exertion is due to increased O2
myocardial demand.
Orthopnea is related to blood pooling in the
pulmonary bed; suspect Pulmonary Edema
Any sudden or acute dyspnea may be a sign
of Pulmonary Embolism
14. Cardiovascular Assessment
Cough/sputum
Mucoid and foamy sputum can be a sign of
CHF
Pink-tinged frothy appearance may signal
Pulmonary Edema.
Whitish, viral infection
Change in color other than the above
mentioned may signify bacterial infection.
16. Cardiovascular Assessment
Palpitations
Awareness of rapid or irregular heart
beat
Autonomic Nervous System and Adrenal
Glands response (stress)
Syncope
Transient loss of consciousness
Due to decreased cerebral tissue perfusion
17. Cardiovascular Assessment
Edema
Due to: Increased Hydrostatic Pressure
(HP)
Decreased Colloidal Oncotic
Pressure (COP)
Obstructed Lymphatic or
Vascular System
Related to Inflammatory reaction
18. Types of Edema
Bilateral edema
= CHF or Renal Failure
Unilateral edema
= Vascular or Lymphatic
obstruction
Non-pitting edema
= Inflammatory
Pitting edema
=
HP and
COP derangement
24. Cardiovascular Assessment
Murmurs
- turbulence of blood flow; if
positive watch out for FVE; normal until 1 year
old
Pericardial Friction Rub -“squeaking
sound”; suspect pericardial effusion if this is
heard
Muffled Heart Sound - if positive rule out
Cardiac Tamponade and other similar problems
like Effusion
25. Laboratory & Diagnostic Test
Complete Blood Count- RBC suggest tissue
oxygenation.
Elevated WBC may indicate infectious heart
disease and MI.
Erythrocyte Sedimentation Rate (ESR)- Its
is elevated in infectious heart disorder or MI.
Normal range: Males: 15-20mm/hr
Females: 20-30 mm/hr
26. Laboratory & Diagnostic Test
Blood Coagulation Test:
1.Prothrombin Time (PT, Pro Time)- It
measures time required for clotting to occur.
Used to evaluate effectiveness of COUMADIN.
Normal range 11-16 secs.
2.Partial Thromboplastin Time (PTT)- Best
screening test for disorders of coagulation.
Used to determine the effectiveness of
HEPARIN. Normal Range: 60-70 secs.
27. Laboratory & Diagnostic Test
Blood Urea Nitrogen (BUN)- Indicator of
renal function
Normal Range: 10-20mg/dl (5-25mg/dl is also
accepted).
Blood Lipids:
1.Serum Cholesterol: 150-200mg/dl
2.Serum Triglycerides: 140-200mg/dl.
28. Laboratory & Diagnostic Test
Serum Enzymes Studies
1.Aspatate Aminotransferase(AST)- Elevated
level indicates tissue necrosis. Normal Range:
7-40mu/ml
2.CK-MB- Elevated 4-6hrs from the onset of
infarction; peaks 24-36 hrs. returns to normal
4-7 days.
Normal Range: males: 50-325mu/ml; Females:
50-250mu/ml
29. Laboratory & Diagnostic Test
Serum Enzymes Studies
3. Lactic Dehydogenase (LDL)- Onset: 12hrs;
Peak: 48hrs; returns to normal: 10-14 days
4. Hydroxybuterate Dehydroxynase (HBD)- it is
valuable in detecting silent MI because it is
elevated for a long period of time.
Onset: 10-12hrs; Peaks: 48-72hrs; Returns to
Normal 12-13 days
30. Laboratory & Diagnostic Test
Serum Enzymes Studies
5. Troponin- Most specific lab test to
detect MI. Troponin has 3
compartments: I,C, &T .
Troponin I persist for 4-7 days.
31.
32.
33. Angina
Myocardial Infarction
Chest Pain- tightness & Severe crushing,
heaviness
stabbing chest pain
Relieved quickly:315min by rest or
sublingual nitrogen.
Not relieve by rest and
medication
Initiated by physical
exertion or stress
Pain last longer >20min
Radiation may or may
not be present
May or may not have
radiation of pain
Frequently associated
with shortness of breath
42. Intervention
Admit to the CCU/ ICU
Activity
Day 1: bed rest, if stable
Day 2-3: bed rest, but patient
may be allowed to sit on a chair
for 15-20 minutes
Early mobilization is
recommended for
uncomplicated AMI
47. Drugs to Limit Infarct Size
Beta Blockers
Hyperdynamic states, HPN w/o
evidence of heart failure
Reduce myocardial oxygen
consumption by decreasing: BP. Heart
Rate, Myocardial Contractility and
calcium output.
Ex: Propranolol, Metoprolol, Atenolol
48. Nursing Consideration:
1.Assess Pulse Rate before administration;
withhold if bradycardia is present.
2.Administer with food, may cause GI upset.
3.Do not administer with asthma it causes
Bronchoconstriction.
4.Do not give to patient with DM, it causes
hypoglycemia.
5.Antidote for Beta Blocker poisoning is
Glucagon
49. Nitrates
Act by augmenting perfusion at the border
of ischemic zone.
Generalized vasodilation
Reducing myocardial O2 demand
Lowering preload
Lowering afterload
Ex: IV Nitroglycerine, Sublingual
Niotroglycerine, Oral/Transdermal
Nitroglycerine
50. Nursing Considerations:
1.Only a maximum of 3 doses at 5 min. interval.
2.Offer sips of water before giving it
sublingually.
3.Store the medication in a cool, dry place; use
dark /amber container.
4.If side effects is noticed do not discontinue the
drug this is usual in the first few doses of
medication.
5.Rotate skin sites for nitro patch.
51. ACE inhibitors
reduce mortality rates after MI.
Administer ACE inhibitors as soon as
possible
ACE inhibitors have the greatest benefit in
patients with ventricular dysfunction.
Continue ACE inhibitors indefinitely after
MI.
Angiotensin-receptor blockers may be used
as an alternative
adverse effects, such as a persistent cough,
53. Nursing Considerations:
1.Assess for signs and symptoms of
Bleeding.
2.Avoid straining at stool to avoid rectal
bleeding.
3.It should be given with food.
4.Observe for toxicity- Tinnitus (ringing
of ears).
5.May cause BronchoconstrictionObserve for wheezing.
54. Heparin
1.Assess for S/S of Bleeding.
2.Keep Protamine Sulfate available.
3.If used SQ. do not aspirate to
prevent hematoma formation.
4.Monitor for PTT or APTT
5.Used for a maximum of 2 weeks.
55. Coumadin (Warfarin Sodium)
1.Assess for bleeding
2.Keep Vitamin K available.
3.Monitor for Prothrombin Time
4.Do not give together with aspirin to
prevent bleeding.
5.Minimize green leafy vegetables in
the diet.
56. thombolytic therapy
The effectiveness:
highest in the first 2 hours
After 12 hours, the risk associated with
thrombolytic therapy outweighs any benefit
contraindicated
unstable angina and NSTEMI
and for the treatment of individuals with evidence
of cardiogenic shock
streptokinase, urokinase, and alteplase
(recombinant tissue plasminogen activator, rtPA),
reteplase, tenecteplase
57. Surgical Care
Percutaneous Transluminal Coronary
Angioplasty
-treatment of choice
PCI provides greater coronary patency
lower risk of bleeding
and instant knowledge about the
extent of the underlying disease.
A specially designed balloon – tipped
catheter is inserted uder flouroscopic
guidance and advance to the site of the
obstruction.
58. Intravascular Stenting
Biologic Stent is produced through
coagulation of collagen, ellastin and
other tissues in the vessel wall by
laser, photocoagulation or radio
frequency.
It is done to prevent restenosis after
Percutaneous Transluminal Coronary
Angioplasty.
59.
60. Emergent or urgent
coronary artery graft
bypass surgery (CABG)
is indicated
angioplasty fails
Severe narrowing of 1
or more coronary
artery.
Commonly used:
Saphenous vein and
internal mamary artery.
62. Cardiac Rehabilitation
A process which a person restored to
health and maintains optimal physiologic,
psychosocial and recreational functions.
Begins with the moment a client is
admitted to the hospital for emergency
care, it continues for months and even
years after the client is discharged from
the health care facility.
63. Goals of Rehabilitation:
1.To live as full, vital and productive life as
possible.
2.Remain within the limits of the heart’s
ability to respond to activity and stress.
64. Activities:
Exercise may gradually
implemented from the hospital
onwards.
Exercise session is terminated if
any one of the following occurs:
cyanosis, cold sweats, faintness,
extreme fatigue, severe dyspnea,
pallor, chest pain, PR more than
100/ min., dysrhythmias greater
than 160/95mmHg.
65. Teaching and Counseling
Self management education guide.
Control
hypertension
with
continued medical supervision.
Diet
Weight reduction program
Progressive exercise
Stress management techniques
Resumption of sexual activity
after 4-6 weeks from discharge, if
appropriate.
66. Teaching guide on resumption of
sexual activities:
Assume less fatiguing position.
The non- MI partner take the active
role
Take nitroglycerine before sexual
activity
If dyspnea, chest pain or palpitations
occur, moderation should be
observed; if symptom persist stop
sexual activity.
Develop other means of sexual
expression.
67. ACUTE RENAL
FAILURE Rapid
onset of oliguria
(<400 ml /day) ,
with severe rise in
BUN & creatinine
(Azotemia –
accumulation of
nitrogen in blood )
68. Acute renal failure is
classified as pre renal,
intra renal or post renal.
All conditions that lead to
pre renal failure impair
blood flow to the kidneys
(renal perfusion), resulting
in a decreased glomerular
filtration
rate
and
increased
tubular
resorption of sodium and
water. Intra renal failure
results from damage to the
69. Onset – 1-3 days with ^ BUN and creatinine and
possible decreased UOP
Oliguric – UOP < 400/d, ^BUN,Crest, Phos, K,
may last up to 14 d
Diuretic – UOP ^ to as much as 4000 mL/d but no
waste products, at end of this stage may begin to
see improvement
Recovery – things go back to normal or may
remain insufficient and become chronic
84. HEMODIALYSIS: Is the
diffusion of dissolved particles
from the blood into the dialysate
bath of the hemodialysis
machine across the
semipermeable membrane of the
dialyzer.
89. Nursing Management:
Weigh the client before and after
the dialysis treatment ( to
determine fluid loss)
Hold meds that can be dialyzed
off
Monitor for SS of Shock &
Disequilibrium syndrome
90. Complication: Disequilibrium
Syndrome – is the rapid change in
composition of extracellular fluid
where the solutes of the blood are
removed from the blood faster than
that of the CSF, causing osmotic
movement of fluid into the CSF
causing cerebral edema.
91. Nursing Management: Disequilibrium syndrome:
Assess for Nausea & vomiting
Assess for headache
Restlessness, agitation & or
confusion
Watch out for seizures
92. Nursing Management: Disequilibrium syndrome:
Notify physician if SS of
disequlibrium syndrome occurs
Reduce environmental stimuli
Dialyze the patient at a shorter period
and at a slower rate
94. Cell destruction of the
layers of the skin and
resultant depletion of fluid
and electrolytes
95. Types of Burns
Thermal : exposure to flame
Chemical: exposure to strong
acids or alkali
Electrical: Caused by electrical
strong electrical current results in
internal tissue injury
96. Burn Depth:
Superficial thickness burn (1st
degree)- mild to severe erythema
of skin, blanches with pressure –
heals in 3-7 days
Partial thickness burn(2nd degree) –
large blisters; painful heals 2-3
weeks
97. Burn Depth:
Full thickness burns (3rd degree) –
white yellow deep red to black
(eschar) disruption of blood flow,
no pain; scarring and wound
contractures will develop.
Grafting is required; healing takes
weeks to months
98. Burn Depth:
Deep full thickness burn (4th
degree) – Involves injury to
muscle and bone= appears
black(eschars) – hard and
inelastic healing takes weeks to
months; grafts are required
105. PARKLAND (BAXTER)
FORMULA FOR FLUID
REPLACEMENT
4ml Lactated Ringer’s sol x
Kg body mass x total
percentage of body surface
burned
106. PARKLAND (BAXTER)
•1st 8 hours = ½ of total
hour fluid replacement
•next 8 hours = ¼ of
total
•last 8 hours= ¼ of total
24
107. A man Suffered from a 3rd degree burn involving
the head and neck, front of the torso (chest &
abdomen), and whole left arm. Weight is 50 kg
Calculate the:
TBSA burned
24 hour fluid replacement in ml
1st 8 hours fluid replacement
2nd 8 hour
remaining 8 hour
108. TBSA:
Head & neck= 9%
front of torso = 18%
Whole left arm = 9%
TBSA burned 36%
110. 1 8 hours :
st
7200 ml
2
= 3600 ml = 1st 8 hours
111. 2 8 hours & remaining 8
hours respectively :
nd
3600 ml
2
= 1800 ml = 2nd 8 hours
= 1800 ml = last 8 hours
112. MANAGEMENT OF BURNS:
Administer fluids as prescribed
Maintain a high calorie, high
protein diet
Monitor intake and output
Monitor for infections of burn site
113. Burn Medications:
Nitrofurazone ( Furacin) –
broad spectrum antibiotic
ointment or cream – used when
bacterial resistance to other
drugs is a problem : apply 1/16
inch thick film directly to burn
114. Burn Medications:
Mafenide ( Sulfamylon) – water
soluble cream bacteriostatic gr + bacteria- apply 1/16 inch directly to
burn – notify physician if
hyperventilation occurs as this drug
may ppt. metabolic acidosis.
115. Burn Medications:
Silver Sulfadiazene
( Silvadene) – cream Broad spectrum
to gr+ - ; does not cause metabolic
acidosis – keep burn covered at all
times with Sulfadiazine – (1/16 inch
thick);
Monitor CBC – causes leukopenia
116. Burn Medications:
Silver Nitrate – Antiseptic
solution against gr-, dressings are
applied to the burn and then kept
moist with Silver nitrate ; used on
extensive burns that may
precipitate fluid and electrolyte
imbalance.
117. DKA( Diabetic Ketoacidosis) / HHNS
( Hyperglycemic
Hyperosmolar Nonketotic Syndrome)
DKA- Is a life threatening
complication of DM type 1 =
develops because of severe insulin
deficiency
122. NURSING INTERVENTION:
Restore Fluids ( administer fluids as
prescribed)
Treat dehydration w/ rapid
infusion of NSS or .45% saline
when blood glucose reaches 250300 mg/dl D5NS, or D5 .45%Saline
is used
123. NURSING INTERVENTION:
Always use infusion pump for IV
insulin
Monitor serum potassium ( initially
as a result of acidosis Hyperkalemia
is present upon admin of insulin K+
level drops)
125. THYROID CRISIS – (THROID
STORM/ Thyrotoxicosis)- Acute life
threatening condition that occurs in a
client with uncontrollable
hyperthyroidism – maybe a result of
manipulation of thyroid gland during
surgery(release of thyroid hormones to
bloodstream)
128. Medical management:
Antithyroid meds: Iodide,
Propylthiouracil, Methimazole
Iodides/ Iodine = Reduce the
vascularity of the thyroid gland
before thyroidectomy,
129. Medical management:
Iodides= used in the treatment of
thyroid storm because it enables the
storage of TH in the thyroid gland.
However it is given only for 10-14
days Because eventually it looses its
effect on the thyroid gland.
130. NURSING INTERVENTION:
ASSESSMENT : elevated Temp
( high fever); tachycardia; agitation;
tremors
Maintain a patent airway
Administer antithyroid meds as
prescribed ( sodium iodide solution)
Monitor VS
140. Hepatic failure presence of both
of the FF:
Bilirubin > 6 mg %
PT > 4 sec over control in absence
of anticoagulation (normal PT – 11-12sec)
Neurologic Failure
GCS < 6 in absence of sedation
141. Medical Management:
Control of infection w/ antibiotics
( common MRSA & Vancomycin
resistant
Aggressive pulmonary care mech
vent & O2 (intubation)
Enteral (NGT) feeding
Manifestations depend on the severity of coronary arterial occlusion.
Age- Persons of above 40 of age are at high risk of developing cad due to degenerative changes in the heart and blood vessels.
Gender- Males are more prone to cardiovascular disorders before age of 65; Females have higher incidence of cases after 65 due to decrease estrogen level in menopause. Increase LDL and decrease HDL causes atherosclerosis formation.
Sympathetic response causes increase secretion of norepinephrine which results to tachycardia and vasoconscriction.
Diet- Increase dietary intake of sodium, cholesterol, and fats predispose a person to cardiovascular disorder.
Exercise- regular pattern of exercise improves circulation to different body parts; maintains vascular tone and enhances the release of chemical activators which prevent platelet aggregation and prevent blood clotting. Sedentary lifestyle increases the risk for CAD.
Smoking- Nicotine causes vasoconstriction and spasm of the arteries; increases myocardial demand; and adhasion to platelets. More carbon dioxide is inhaled than oxygen.
Alcohol- 30ml of alcohol is stimulant and causes vasodilation. More than 30ml causes vasoconstriction and increase BP.
Increased systemic vascular resistance, endothelial damage, increase platelet adherance and increase permeability to endothelial lining results to high BP.
Hyperlipidimia- Increase LDL cholesterol damages endothelium and causes accumulation of fatty plaques on endothelial lining and proliferation of smooth muscle cells.
Diabetes Mellitus- Glucose from CHO cannot be transported into cells due to insulin deficiency or increase resistance to insulin. Body then mobilize fats to become source of glucose. Most of it remains lipids. Hyperlipidimia results, enhances the risk of atherosclerosis.
Obesity- It will result to increase cardiac workload. The heart has to pump blood supply to a larger body surface area. May also be characterized by rise in serum lipid level.
Personality- Type A behavior pattern, characterized by competitiveness, impatience, aggressiveness and time urgency has been correlated with CAD.
“ Hindi na baleng tamad hindi naman pagod and walang sakit sa puso”.
Decrease tissue perfusion and oxygenation may cause anaerobic metabolism causes production of lactic acid that causes nerve endings irritation that causes chest pain.
Orthopnea- usually a symptom of a advance heart failure. Needs several pillows in order to sleep during night.
Paroxysmal Nocturnal dyspnea usually occurs 2-5 hrs after the onset of sleep. Due to the venous pooling to the lower extremities during day time once the patient resumes a lying position, the blood will be distributed to upper body part which will cause congestion to the lungs.
Palpitations- unpleasant awareness of heart beat. Describe as pounding, racing, skipping. Palpitations that occurs during mild exertion may indicate tha presence of heart failure, anemia or thyrotoxicosis.
Due to accumulation of fluids to in the interstitial compartment.
Due to: Increased Hydrostatic Pressure (HP)
Decreased Colloidal Oncotic Pressure (COP)
Pallor and Cyanosis due to poor oxygenation. Jaundice due to hemolysis of RBC.Jugular vein distention due to Venous congestion. Cool and moist/ Clammy due to vaso constriction in MI this is common.
Clubbing is associated with a wide number of diseases. It is most often noted in heart and lung diseases that cause a lower than normal amount of oxygen in the blood.
Clubbing may also be due to lung cancer, and diseases of the liver and gastrointestinal tract.
Clubbing may also occur in families. In this case it may not be due to an underlying disease.
Murmur are audible vibrations of the heart and great vessels that are produced by turbulent blood flow.
Hypoxia stimulates renal secretion of erythropoietin. This stimulates bone marrow to increase RBC production (Polycythemia)
Expected Leukocytosis on the second day and resolves after a week.
Activated Partial Thromboplastin Time (APTT)- most specific test to evaluate effectiveness of Heparin.
BUN – decreased cardiac output leads to low renal perfussion and reduction of glomerular filtration rate. BUN becomes elevated.
Hyponatremia- indicate fluid excess and be caused by heart failure or administration of thiazide diuretics.
Hypernatremia indicates fluid deficits and can result from decrease water intake or loss of water due to excessive sweating or diarrhea.
Potassium major role in cardiac electrophysiologic function.
Hypo K due to administration of potassium decreasing diuretics, may predispose clients to many life treatening dysrrhytmias and digitalis toxicity.
HyperK due to increase intake of K or decrease excreation of K may result to heart block, asystole, and ventricular dysrythmias.
Calcium- necessary for blood coagubility, neurovascular activity and automaticity of nodal cells.
Hypocal- slow nodal function and impair myocardial contractility.
Hypercal- potentiates digitalis toxicity , casuses myocardial contractility and sudden death from ventricular fibrillation.
Magnesium- necessary for absorbtion of calcium and maintainace of potassium stores, and metabolism of adenosine triphospate. Plays major role in chon cho synthesis and muscular contraction.
Low magnessium may cause atrial or ventricular tachycardias. Hypermagnesemia may depress myocardial excitability causing heart block and asystole.
Although it cannot help in diagnosing MI it can help identify some possible complications.and correct placement of cardiac catheters such as pacemakers. It can also show various degrees of left ventricular failure or pulmonary congestion.
Cardiac catheterization shows impaired blood flow, partial obstruction or narrowing of coronary arteries.
Using of a contrast agent( dye) to visualize heart and blood vessels. Patient is instructed to fast 8-12 hrs prior to procedure. The procedure will last not more than 2 hrs in a lying flat position on a hard table. The contrast agent may cause flushed feeling and sensation similar to void but will subside later on.
Assume sitting position to prevent Hypostatic hypotension, and sudden movement to prevent orthostatic hypotension.
Burning or stinging sensation may indicate potency of the drug.
Sublingual produces 1-2 min onset of action lasting to 30 min.
Evaluate effectiveness: relief of chest pain.
Wash site after the patch is remove.