Exam 2 Flashcards
When do we asses vital signs? (5)
-On admission
-Any change in the health status
Immediately before and after surgery/invasive procedures
-Before giving certain medications
-Before and after nursing interventions that could affect vital signs
What are some factors that can affect vital signs?
-age
-gender
-race/hereditary
-medication
-exercise
Thermoregualtion deficiencies are common in what pts
Elderly and newborns
What may contribute to the development of hyperthermia ?
Exercise, activity and dehydration
When can you check for the highest and lowest temp
In the evening/night 8pm and 12mn
Early 4-6 am
Define body tempt and the various sites
It’s the balance between heat produced and heat loss from body
Oral recital axillary
What are some examples of contra indications for rectal thermometer
Recital surgery ,
new born ,
rectal bleeding,
cardiac disease or surgery ,
low wbc- neutropenia
low platelets count
Body temperature
Normal
Hypothermia
Hyperpyrexia
96.4-99.5
Below 96.4-
Hyperthermia- fever 100.8- 105.8
Greater than 105.8
What are some contraindications for oral temperature
Dyspnea
Unconsciously
Disorientation
Infants/children
Oral surgery
Oxygen mask
Within 15-30 min of drinking hot/cold , smoking chewing gum or candy
What’s the difference between febrile and a febrile
Fever vs non fever
What are the signs of fever?
Loss of appetite
Hot/dry skin
Thirst
Muscle aches
Fatigue
Respiration/pulse increase
Confusion in older adults
Imbalance in fluid/electrolytes
What are some interventions for pt with fever
Minitor temp /vitals
Check insensible water loss
Check level of consciousness
Monitor wbc, c &s lab values
Monitor inputs/outputs
Oral hygiene
Encourage fluid
Medicate with anitpyretics
Tepid sponge baths/cool packs
Monitor electrolytes
What are the 3 mechanism that involves hypothermia
Excessive heat loss
Inadequate heat production
Impairment of the hypothalamic thermoregulation
Heat loss from skin and respiratory tract
Signs of hypothermia ( body temp)
Decreased temperature
Severe shivering
Pale waxy skin
Increase bp ???
Disoriented
Drowsiness, lethargy coma
Poor muscle control
Decrease urinary output
What are some interventions for hypothermia
Monitor temp every 2 hrs
Administer blankets
Administer warming blankets as per md order
Admin warm fluids
Assess vitals frequently
Instruct pt to avoid extreme temperatures and dress adequately
What are the peripheral pulses
Temporal
Carotid
Brachial
Radial
Femoral
Popiteal
Posterior tibial
Pedal ( dorsalis pedis )
What are the pulse and respiration parameters
Adult
Aged adult
60-100 (80
40-100( 70
Factors of tachycardia
Pain
Strong emotions
Anxiety
Exercise
Prolonged heat exposure
Decrease bp or volume
Medication
Factors that effect bradycardia
Slow pulse at rest
In general male have slower pulse rate than female
Found in athletes
Medication such as beta blockers
Hypothermia
During sleep
Tell me about digoxin
Digoxin
Classified: cardiac glycosides
Increased contractility with increase co
Monitor electrolytes
Monitor therapeutic drug level
Know signs and symptoms of toxicity
What’s included in the upper and lower respiratory (
Mouth nose pharynx larynx
Trachea
Bronchi
Bronchioles
Alveoli
Pulmonory capillary
Pleural membranes
Oxygen transport
Transporter from the lungs to the tissues
97% of oxygen combines with hemoglobin in red blood cells and Carrie’s to tissues as oxyhemoglobin
Remaining oxygen is dissolved and transported in plasma and cells
( perfusion ? )
Carbon dioxide transport
Must be transported from the tissue to the lungs
Continually produced in the process of cell metabolism
65% is carried inside the red blood cells as bicarbonate
30% as catbheglobin
5% transported in solution in plasma and as carbonic acid
Diffusion ?
What’s the process of inspiration
Air flows into the lungs
Diaphragm and inter coastal contact
Thoracic cavity size increases
Volume of lungs increases
Intrapulmonary pressure decrease
Air rushes into the lungs to equalize pressure
Process of exhaling
Diaphragm and intercostals relax
Volunteer of lungs decrease
Intrapulmonary pressure rises
Air is expelled
Depth
Generally described as normal deep or shallow
Hypoventilation
Hyperventilation
Rhythm
The regularity of expiration
Normal rhythm is evenly spaced
Generally described as regular or irregular
Abnormal breathing patterns
Kussmsul’s breathing: blowing it puffing , deep rapid breathe ( metabolic acidosis blowing off co2
Cheyene strokes respiration: rhythmic waxing and waning of breaths from very deep to very shallow and temp apnea
Biot respiration: irregular, varying depths and rate followed by apnea
Hypercapnia: abnormal High level co2
Hypoxia ( oxygen)
Condition of insufficient oxygen anywhere in the body
Rapid pulse
E
Slid shallow respiration & dyspnea
Flaring of Nare’s
Cyanosis
Substernal or intercostal retractions
Obstructed or partially obstructed
Partial obstruction indicated by low pitch snoring during inhalation
Complete obstruction indicated by extreme inspiratory effort with no chest movement
Accessory to act “ use of accessory muscle can enhance lung expansion with oxygen drops ( copd)
COPD
Group of disorders characterized by impaired airflow in lungs
Asthma: bronchospasms , swelling of mucous membranes airway obstruction
Emphysema: inflammation of bronchial walls causes thickening and increased mucus
Chronic bronchitis: inflammation of bronchial walls causes thickening and increase mucus
Atelectasis: condition in which one or more areas in lungs have collapsed and can’t inflate properly
Nursing interventions to promote respiratory function
Ensure a patent airways
Positioning
Encourage deep breathing, coughing
Instruct pursed lip breathing or diaphragmatic breathing ( ob disease )
Adequate hydration
Assess vitals
Education: no smoking
Pain control
Ambulation
Monitor lab Val’s
How to promote respiratory functions
Medications ( nebulizer, steroids vaccines
Incentive spirometry
Chest pt
Postural drainage
Oxygen therapy
Artificial airway
Airway suctioning
Chest tubes
Meeting oxygen needs
Oxygen is considered a medication
No smoking
Avoid using oils in nasal area/body area
Avoid synthetic fabrics
Check flow meter rate
Nasal care
Humidication ( 4 or more l )
Check electrical equipment and make sure oxygen is attached to canister
Oxygen delivery system table
Nasal cannula : most commonly used
Simple mask
Partial rebreather
Nonrebreather mask: delivers highest concentration of oxygen
Venturi mask : most precious concentration of oxygen
What are some diagnostic test for oxygenation (6)
Pulse oximetry
Pulmonary function test:
Spirometer
Peak expiratory flow total lung capacity
Complete blood count ( cbc)
Arterial blood gas ( abg)
Chest radiography
What are the 3 physiological factors that influence blood pressure
Cardiac function / pumping of heart
Peripheral vascular resistance
Blood volume
Cardiac function
Stroke volume:
Cardiac output:
Stroke volume : quantity of blood flowing out of the left ventricles with each contraction
Cardiac output: the volume of blood pumped by the heart per minute
Co = sv times heart rate
Increase in co
The heart’s pumping action is strong and the volume of blood pumped into circulation increases
Condition that increase co causing increase bp
Increased blood volume as occurs during pregnancy, fluid retention
More forceful contraction of the ventricles as occurs during exercise
Decrease in co
The pumping action of the heart is weak
Less blood is pumped into the arteries
Causes decrease in bp
*conditions that decrease co include
Dehydration
Active bleeding
Damage to the heart
How does the vascular resistance effects the diastolic pressure causing increase in bp
Blood viscosity
Arterial size
Arterial compliance ( elasticity)
Blood volume :
Increase blood volume increase in blood pressure
Decrease blood volume decrease bp
Medications used for hypertension
Thiazide diuretics: hydrochloride (first line )
Loop diuretic: furosemide
Beta blockers: metoprolol
Ace inhibitors: enalapril ( first line )
What’s the difference between a drug and a medication
Any substance that positively or negatively alters physiologic functions
A drug specially administered for its therapeutic effect on physiologic function
Tell me about therapeutic
It cure, treatment or relief of symptoms diagnosis treatment and prevention of disease
Synthesized in the laboratory developed from plants mineral or animal sources
What do know about each medication
Generic name
Trade name
Route
Classified
Indication
Therapeutic action/goal
What is pharmacokinetics 4 phases
( Adem)
Metabolism: how it’s broken down,
Absorption : how will it get inside ( drug dose drug form, blood flow site and condition of absorbing surface )
Distribution: where will it go ( transport )
Excretion: how fast it leaves ( lungs gi breast milk saliva and feces )
Principles of med admin via gi tube
Elevate head of pt bed
Check placement , residual and patency
Use liquid meds when possible
When crushing meds ensure they are okay to be crushed ( no capsule or sustained release meds
After feuding mix one medication at a time with 15-30 ml of water and give each medication one at a time
Flush tube with 15-30 ml water before and after each administration
Most common route for parental injection
Sq
I’m
Intradermal
Intravenous
What are complications with distribution?
The availability can be limited by the body through barriers, blood /brain Barrier and placenta
Drug that binds with plasma protein can be prevented from immediately reaching tissue
Metabolism
Biotransformation of drugs
Mainly done by liver
Enzymatic effects cause drugs to be changed into a form more easy to excrete
P450 is one of the primary enzymatic pathways in the liver for drug transformations
First pass effect : most oral med experience this by going directly through propel circulation, inactivating much of a drug
Excretion
Process of removing the drug or it’s metabolites form body
Done primarily by kidneys
Renal impairment = decreased excretion of the medication and increase risk of toxicity
Poor kidney function requires low speeded of many meds
What is pharmacodynamic
The process by which drugs alter cell physiology and effect the body, these processes include:
Receptor agonist ( actives )
Receptors antagonist ( blocks)
Drug enzymatic actions
Therapeutic drug actions
Occurs by maintaining constant drug level in body
Half life : expected time for the blood concentration to measure one half of the original doe due to elimination
What is the therapeutic range
Serum level of concentration of the drug that produces desired effect without toxicity
Onset of action: time takes body to respond after administer
Peak : highest plasma concentration
Trough: lowest plasma concentration
Elder consideration
Altered memory
Decreased visual acuity
Decrease in renal function
Slow absorption from the gi
In creation proportion of fat to lean body mass
Decreased liver function decrease organ sensitivity
Altered quality of organ responsiveness
Decrease in manual dexterity
What are side effects vs adverse
Predictable but unwanted, sometimes unavoidable reactions to meds
Adverse : severe unwanted unpredictable drug reaction
May occur after 1 dose ( sever allergic response )
May occur over time ( eg anemia )
Allergic reaction: unpredictable immune response , rash hives runny nose
Anaphylactic reaction: severe allergic reaction and a medical emergency
Adverse drug cont.
Some can be predictable and manageable (side effects )
Others more serious allergy ( anaphylaxis) toxicity
Drug tolerance, drug to drug interactions and idiosyncratic effects are also possible adverse effect
Toxic effects:
Results form medication overdoes or buildup in the blood due to impaired metabolism and excretion
Medication interaction
Medication interaction is modified by the presence of another medication or food or herb
Synergistic: combined effect is greater than effect of each alone
Antagonist: drug effect is decreased when taken together greater poly pharmacy , greater herbal supplement
Signs of drug allergy
Rash
Urticaria
Fever
Diarrhea
Nausea
Vomiting
Original source of drugs
Plant
Animal
Minerals
Intradermal route :
Forearm, upper back, and scapular
Tb syringe
1 ml
5-15 degrees
Usually less than 0.5ml ( 0.01_ 0.1)
For allergy and skin sentivity
Sq route
Upper arm , abdomin, upper back and the upper dorsogluteal area
45-90 degree ( 1ml)
Syringe: 25 gauge 5/8 to needle ( no aspirating )
Heparin( 2 inch away from navel ) and insulin