funds test 2 Flashcards
isotonic solutions
Also known as normal saline or lactated ringer’s
0.9% NaCl
Causes no fluid shifts
Helps with electrolyte replacement or vascular expansion
Monitor for signs of fluid overload, especially with history of renal or cardiovascular disease
Don’t use in patients with liver disease or metabolic acidosis
This is the only solution that can be given with blood products
hypotonic solutions
0.45% NaCl
Moves fluids into cells and interstitial space
Treats cellular dehydration
Monitor for intravenous fluid depletion and cardiovascular collapse
Don’t give to patients at risk for increased intracranial pressure –head trauma, neurosurgery, and CVA (can lead to shift of fluid into brain cells)
Don’t give to patients at risk of third spacing (fluid moves into interstitial space) –this includes burn victims, trauma pts, liver failure, severe protein malnutrition
hypertonic solutions
3% NaCl
Draws fluid from intracellular to intravascular
Treats intravascular dehydration with interstitial and intracellular fluid overload and sepsis
Closely monitor for fluid overload because solutions expand intravascular component
Avoid in patients with renal or cardiac impairment as well as intracellular dehydration (diabetic ketoacidosis)
Rarely used except in ICU
Colloid solutions
not clear
Given to patients who are malnutritioned and can’t receive large molecule IV solutions
Blood products
Parenteral nutrition
Prescribed when a patient’s GI tract is not functioning or can’t consume sufficient nutrients orally or enterally
Contains carbs (dextrose), amino acids (protein), lipids (fats), electrolytes, vitamins and minerals
Total parenteral nutrition
Provides nutritionally complete solution
2000 cals/day
Central vein
For patients with high caloric needs and long term (>7 days)
Hypertonic (makes cells shrink)
>10% dextrose and >5% amino acids
Partial parenteral nutrition
Not nutritionally complete
<2000 cals/day
Peripheral vein
Short-term support
Isotonic
No more than 10% dextrose and no more than 5% amino acids
Infiltration
when medication leaks outside the vein
S&S: Swelling, coolness, discomfort at the site, slowed infusion rate, absence of blood return
Action: Discontinue IV and start in new location, apply warm soak to decrease swelling
Prevention: Select a site over long bones that act as a splint, avoid sites over movable joints, consider using manufactured stabilization devices
Phlebitis
inflammation of the vein
S&S: Pain, warmth, redness at site, vein may feel hard and cord-like, slowed infusion rate
Action: Discontinue IV and restart in another location, apply warm soak for discomfort, do not irrigate
Prevention: Change IV site every 72h, use large veins and large gauge needles rather than catheters, dilute medicine well and infuse slowly, use central line for very irritating solutions
Infection
Infection is when bacteria gets into the IV site. It can be local or systemic
Local
S&S: redness, warmth, purulent (pus) drainage at site
Systemic
S&S: Fever, chills, malaise (overall feeling of “not being well”), elevated WBCs
Action: Discontinue IV and restart in another location. Culture catheter tip and blood, treat with abx
Prevention: Strict asepsis, handwashing, and change tubing every 96h
Fluid Overload
Too much fluid
S&S: Elevated vitals (BP, pulse, and respirations), dyspnea (difficulty breathing), pulmonary edema (crackles), jugular vein distention, weight gain
Action: Slow IV to keep open rate, notify provider, place patient in high/semi-high fowler, administer oxygen if needed
Prevention: Monitor rates carefully, use an EID, don’t try to catch up when IV gets behind if a patient is at high risk of fluid overload
Air embolism
when an air bubble gets in the IV and acts as a clot
S&S: Pain in chest, shoulder, or back; dyspnea, hypotension, thready pulse, cyanosis, LOC
Action: Place on left side in Trendelenburg position (head angled down at about 16 degrees), notify provider, monitor vitals
Prevention: Tape all connectors or use luer lock, air-eliminating filters, EID for central venous, instruct patient to use valsalva maneuver when changing tubing or discontinuing a central line
Valsalva maneuver: Plug nose and push down like you’re trying to poop (this trick is also done to open up your ears!)
Steps to initiate IV therapy
- Assess access site carefully for infection and thrombophlebitis (an inflammatory process causes clots to form and block one or more veins (usually in legs)
- Maintain strict asepsis when handling site, solution, tubing
- Monitor for metabolic complications
(Refeeding syndrome, Hyper/hypoglycemia) - Assess for fluid overload and air embolism
- Monitor I&Os and daily weights
- Monitor lab work weekly
- Do not add any solutions or medications to PPN or TPN
- Use an EID and filtered tubing
- Obtain daily solution orders, note expiration dates on bottles
Central venous access
TPN can only be administered this way
PICC line
Central line
Tunneled catheter
Implanted access
the internal jugular vein, femoral vein, and subclavian vein.
Cranial Nerve 1
Olfactory: sensory, Identify a smell
Cranial Nerve 2
Optic: sensory, snellen chart
Cranial Nerve 3, 4, 6
Oculomotor: motor
PERRLA
Pupils
Equal size (3-7mm)
Round shape
React to light
Light is direct or consensual
Accommodation
Close: Converge and constrict
Distance: Straight and dilate
Troclear, Abducens: motor
Look in 6 directions (inferior oblique, superior rectus, lateral rectus, inferior rectus, superior oblique, medial rectus)
Cranial nerve 5
Trigeminal: sensorimotor Touch forehead, chin, and cheek and identify sensation (sharp or dull)
Cranial Nerve 7
Facial: sensorimotor Puff cheeks
Cranial Nerve 8
Vestibulocochlear: sensory
Rinne: Pitch fork on top of head, sound should be equal in both ears
Weber: Fork goes behind and next to ear to test bone conduction vs air conduction (AC>BC, meaning you should hear air conduction for longer than bone)
Whisper voice test
Romberg test: Tests vestibular apparatus to maintain balance
Stand straight, arms at sides, legs together. Stand straight for 20 seconds
Cranial Nerve 9, 10, 11
Glossopharyngeal and vagus: sensorimotor Gag reflex and saying ahhhh
Hypoglossal: motor Put tongue straight, left, and right. Then push against my hand with your tongue in cheek
Cranial Nerve 12
Spinal Accessory: motor
Pt pushes shoulders up while you hold them down
Pt pushes head towards your hand
Cerebellar Function
Gait, balance, Romberg test, coordination and skilled movements (RAM), finger-to-finger, finger-to-nose, heel-to-shin
Mini Mental State Exam
To provide an objective assessment of cognition; to alert healthcare personnel of changes in cognitive function
A score of 20 or below indicates significant cognitive impairment
Delirium
Acute confusion, reversible, quick
Sensory overload (hyperactive delirium)
Person is unable to process or manage intensity or quantity of incoming sensory stimuli; accompanied by feelings of being out of control and overwhelmed
Sensory deprivation (hypoactive delirium)
A lessening or lack of meaningful sensory stimuli, monotonous sensory input, or an interference with the processing of information
Deep Tendon Reflexes (definition, scale)
Measures the intactness of the reflex arc. Stimulus is applied with the reflex hammer to the insertion tendon of the muscle. Use short, snappy blow–the limb should be relaxed and muscle partially stretched
0 –no response
1+–diminished reflex (may be normal)
2+–normal
3+–briskier than normal (may be normal)
4+–hyperactive–upper neuron disorder suspected
Bicep Deep Tendon Reflex
C5, C6
Flex patient’s arm at the elbow with their forearm resting on the thigh, palm up. Place your thumb on the base of the biceps tendon in the antecubital fossa. Strike your thumb with the sharp side of the reflex hammer
Tricep Deep Tendon Reflex
C7, C8
Have pt’s arm hang loose at a right angle and strike the tricep tendon (just above the olecranon process) with the sharp side of the hammer
Quadriceps Deep Tendon Reflex
Patellar, L2, L3, L4
Client performs Jendrassik maneuver (teeth clenched and arms hooked together) and strike the patellar tendon just below the patella with the flat side of the hammer
If patient remains supine, support the back of their knee while the leg is flexed at a 45 degree angle
Achilles Deep Tendon Reflex
L5-S2
Have the pt sit at the edge of the examination table with their legs dangling above the floor. Gently dorsiflex the foot at the ankle and position the joint at 90 degrees or until resistance is felt. Strike the achilles tendon with the sharp side of the hammer
Modifiable Risk Factors for Strokes
High BP, high cholesterol, diabetes, afib, carotid stenosis, atherosclerosis, tobacco use, physical inactivity, obesity, excessive alcohol intake, illegal drug use
Non modifiable Risk Factors for Strokes
Increasing age, gender (male), family history, prior stroke or TIA (transient ischemic attack or “mini stroke”, race (African American, Hispanic, and Asian population at higher risk)
Signs and Symptoms for strokes
Sudden numbness or weakness of the face, arm, or leg, especially unilateral
Sudden trouble speaking or understanding
Sudden trouble seeing in one or both eyes
Sudden trouble walking, dizziness, or loss of balance or coordination
Sudden, severe headache with no known cause
FAST– Facial drooping, Arm weakness, Speech difficulties, and Time
Stroke nursing interventions
Regain balance.
Teach patient to maintain balance in a sitting position, then to balance while standing and begin walking as soon as standing balance is achieved.
Manage sensory difficulties.
Approach patient with a decreased field of vision on the side where visual perception is intact.
Visit a speech therapist.
Consult with a speech therapist to evaluate gag reflexes and assist in teaching alternate swallowing techniques
Repositioning to prevent bed sores and things
Ischemic stroke
Caused by a clot leading to limited blood flow to brain
Hemorrhagic stroke
Caused by rupture of blood vessel in brain
Hemiparesis
Hemi means side, paresis means paralysis, so hemiparesis means paralysis of one side. Effects legs, arms, and face
Stereognosis
Depth perception, ability to identify object by touch
Graphesthesia
Sensing what is written by touch (someone daws an “8” on your hand and you can identify it)
CNS
brain and spinal cord
PNS
of cranial nerves, spinal nerves, reflex arc, and ANS (not controlled by you)
Glasgow Coma Scale
To provide objective assessment of consciousness; to alert healthcare personnel of changes in LOC
A score of 13-15 indicates mild brain injury
9-12 is moderate
3-8 is severe
GCS Eye Movement
- Spontaneously
- To speech
- To pain
- No response
GCS Verbal Response
- Oriented to time, person, and place
- Confused
- Inappropriate response
- Incomprehensible words
- No response
GCS Motor Response
- Obeys command
- Move to localized pain
- Flex to withdraw from pain
- Abnormal flexion
- Abnormal extension
- No response
Thoracic Cavity
mediastinum (cavities that enclose the lungs)
and pleural cavities
Right lung
3 lobes: superior, lateral, and inferior
Left lungs
2 lobes: superior and inferior, and also contains the cardiac notch, which is where the heart is
Parts of the lung tree
Larynx
Trachea
Bifurcation of the trachea (where it splits into two)
Left and right main bronchus
Secondary bronchi
Tertiary or segmental bronchi
Bronchioles