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CNS Pharm exam 2
Pharm exam 2
180
Nursing
Undergraduate 4
02/21/2014

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Term
Blood-Brain Barrier
Definition
It is a covering of astrocytes that encircle capillary walls of brain. Allows water, alcohol, oxygen, C02, glucose, gases and lipid soluble substances to penetrate
Term
OCD, PTSD, GAD, panic disorder and social phobia are all classified as what?
Definition
Anxiety disorders
Term
Benzodiazepines
Definition
Depresses activity in the limbic and hypothalamus/brainstem/thalamic areas. Increases GABA, all benzies are Schedule IV. Also causes muscle relaxation, analgesic effects, and anticonvulsant effects. Also can cause sedation and hypotension
Term
Benzodiazepines prototype
Definition
Lorazepam (Ativan)
Term
What are the symptoms of Benzo overdoses?
Definition
Lethargy
Confusion
Respiratory depression
Hypotension
Cardiac and respiratory arrest
Term
Treatment for benzo overdose
Definition
treat symptoms
- supportive measures
- gastric lavage
- activated charcoal
Term
What is the antidote for benzodiazepines?
Definition
Antidote is flumazenil (romazicon)
Term
Nursing interventions for Benzos
Definition
Safety
Side rails
Ambulation assistance
Fall prevention
Monitor for CNS depression
Assess LOC (level of consciousness)
Assess anxiety level
Monitor for abuse
Term
Patient teaching for Benzos
Definition
Don’t double dose
Avoid other CNS depressant agents (ie: alcohol)
Avoid driving/using heavy machinery
Don’t stop abruptly. Need to taper doses.
Term
Barbiturates
Definition
Anti-anxiety. Once commonly prescribed. Now benzos are preferred
Term
What is the MOA of Barbiturates
Definition
Nonselective depression of CNS, increased GABA
Term
Barbiturate prototype
Definition
Phenobarbital (luminal) which is long acting
Term
Baribiturate indications
Definition
Epilepsy
Insomnia
Short term
Lose effectiveness in about 2 weeks
Preanesthetic sedation
IV anesthetic
Term
Barbiturate side effects
Definition
CNS depression
Respiratory depression
Hypotension
Term
Barbiturate adverse effects
Definition
Tolerance
Physical dependence
Abrupt withdrawal can be fatal
Abuse
Barbiturates have a very narrow therapeutic index
Overdose can be fatal
Term
In order for a person to be diagnosed as having a major depression disorder, what must they present with?
Definition
, the patient must exhibit 5 elements that are present most of the day, nearly every day for a period of at least two weeks out of the following two categories:
Depressed mood
Anhedonia
Term
Initial response to antidepressant medication
Definition
1-4 weeks
Term
Maximal response to antidepressant medication
Definition
might not be felt until 12 weeks into treatment
Term
A drug cannot be considered ineffective until what?
Definition
It has been taken for 1 month without pt improvement
Term
How long should antidepressant treatment last?
Definition
4-9 months after symptoms are in remission
Term
Tricylcic
Definition
First available in Western medicine
Blocks serotonin and norepinephrine reuptake
Term
MAOI's
Definition
Second or third-line antidepressants
Inhibits monoamine oxidase enzyme
Numerous drug and food interactions
Term
SSRI's
Definition
Current first line therapy
Safer and as effective
Blocks reuptake of serotonin
Term
SNRI's
Definition
Blocks reuptake of serotonin and norepinephrine
Side effects similar to SSRI’s
Term
Tryclic antidepressant prototype
Definition
Imipramine (tofranil)
Term
Is imipramine (tofranil) Often used as a first learn therapy? What are the side effects?
Definition
RARELY used as first line. Significant anticholinergic effects
Dry mouth
Tachycardia
Urinary retention
Constipation
Blurred vision
Significant orthostatic hypotension
Sedation
Increased risk for seizures
Overdose can be fatal
Cardiac dysrhythmias
Term
Nursing assessments/interventions for tricylics
Definition
Assess for effectiveness
Assess for compliance
Assess cardiovascular system
EKG before starting may be required
Monitor for side effects
Assess for suicide ideation
Term
Tricylic nursing teaching
Definition
Takes 1-3 weeks to see benefit
anticholinergic effects
Avoid Use of hard candy, gum
Good oral care
Rise slowly to avoid orthostatic BP effects
Treatment will continue for 4-9 months
Term
MAOI’s prototype
Definition
tranylcypromine (Parnate)
Term
What does MAOI's do?
Definition
Inhibits MAO enzyme in the liver, intestinal walls and ends of some neurons
Term
How long does it take an MAOI to take effect? Is it a first choice med?
Definition
1-3 weeks. Considered a THIRD choice after SSRI and TCA.
Term
What are MAOIs effective in treating and what are their side effects?
Definition
Effective in treating atypical depression
Side effects:
Orthostatic hypotension
CNS stimulation
Hypertensive crisis
Term
MAOI interactions
Definition
Hypertensive crisis as a result of interaction with tyramine containing foods
Term
What foods contain tyramine?
Definition
cheese, smoked/pickled meats, aged/fermented meats, yeast. sauerkraut, beer/chianti wines
Term
What are the symptoms of an MAOI hypertensive crisis?
Definition
Tachycardia, palpitations, headaches, sweating, Nausea/vomiting
Term
What do we teach pts with MAOIs
Definition
Orthostatic hypotension
Dietary restrictions
Provide specific list
Signs of hypertensive crisis
Avoid all other drugs/supplements (including OTC)
unless approved by provider
Term
What do we assess with MAOIs?
Definition
effectiveness, med and diet compliance, cardio system, side effects, suicide ideation
Term
Can a TCA be given with an MAOI? How about an MAOI with a TCA?
Definition
You can give a TCA with an MAOI, but not the other way around
Term
When you start an MAOI and TCA at the same time, what dose do you give?
Definition
50% of usual dose
Term
If the decision is made to switch from an MAOI to a TCA, how long is the wash-out period?
Definition
2 weeks between the drugs
Term
If the decision is made from switching to an SSRI from an MAOI?
Definition
2-5 weeks between the drugs
Term
Can you use an MAOI and SSRI at the same time?
Definition
No. They are contraindicated
Term
What is the prototype of SSRIs?
Definition
Fluoxetine (Prozac)
Term
What does SSRI stand for
Definition
Selective serotonin Reuptake Inhibitors
Term
How long does it take for an SSRI to be effective?
Definition
Takes up to 4 weeks for effectivness
Term
Do SSRIs have a long or short half life?
Definition
Long, which allows for daily doses
Term
Is fluoxetine highly protein bound?
Definition
Yes, it binds at a high rate
Term
Which has fewer anticholinergic and cardiac effects, TCA's or SSRI's?
Definition
SSRI's. Death by overdose is rare.
Term
SSRI side effects
Definition
Nausea, Sexual dysfunction, Insomnia, weight gain, serotonin syndrome (SES)
Term
SSRI nursing teaching
Definition
Take in morning to reduce insomnia, take for 4 weeks to see benefits, sexual dysfunction, weight gain, tx is 4-9 months
Term
SNRI's
Definition
Seratonin/Norepinephrine reuptake inhibitors
Term
SNRI's prototype
Definition
Venlafaxine (Effexor) very similar to SSRI's. equally effective and similar side effects
Term
Bipolar disorder
Definition
Characterized by mood swings from depression to euphoria. Drugs used to treat this disorder are called “mood stabilizing drugs”
Is chronic condition requiring life-long treatment
Term
Mania
Definition
Inflated self esteem/grandiosity
Speech hyperactivity
Motor hyperactivity
Decreased sleep requirements
Flight of ideas
Poor judgment
Inappropriate social behavior
Possible aggression and hostility
Involvement in reckless behaviors
Impulsive shopping
Hypersexual activity
Term
Antimania Agents prototype
Definition
Lithium (lithobid)
Term
What does lithium affect which decreases neurotransmitter release?
Definition
Sodium/Na+
Term
Lithium "Facts" need to know
Definition
Exact mood stabilizing mechanism is unknown
Dosing is individualized to patient
Short half-life
Administered several times a day
Metabolized/excreted via kidneys
Narrow therapeutic index
Term
Lithium blood levels
Definition
0.6 to 1.2 meq/L
Term
Signs of lithium toxicity (late to early)
Definition
Fine motor hand tremors, NVD, Muscle weakness, slurred speech, drowsiness, blurred vision, seizures
Term
Nursing Assessments for Lithium
Definition
Assess history/frequency of manic. Moniter serum lithium levels
Term
When should lithium be administered and why?
Definition
After meals to decrease GI upset
Term
When do we monitor serum lithium levels?
Definition
Weekly until stabilized. Drawn in am before morning dose
Term
What do we educate with serum lithium?
Definition
Compliance, regular drug levels, toxicity symptoms, increased fluids, maintain consistent sodium intake
Term
Psychosis
Definition
A term used to describe a loss of contact with reality. Can be acute or chronic. Characterized by delusions, hallucinations, lack of insight and judgement, inappropriate mood an affect
Term
Positive psychotic symptoms
Definition
symptoms reflect an increase in the presence of abnormal behaviors. These active, abnormal symptoms are hallucinations, delusions, thought disorders and movement disorders
Term
Negative psychotic symptoms
Definition
an absence of normal behaviors found in healthy individuals. They may appear months of years before positive symptoms. They are loss of interest, lacking motion, reduced ability to carry out activities, neglect of personal hygiene, social withdrawal, loss of motivation
Term
Cognitve psychosis symptoms
Definition
problems with thought processes, these might be the most disabling in schizophrenia, because they interfere with the ability to perform ADLS. 1. problem w/ making sense of information 2. Difficulty paying attention 3. memory problems
Term
First generation conventional Antipsychotics
Definition
Haloperidol (Haldol)
Term
Haldol side effects
Definition
EPS (extrapyramidal symptoms) dystonia, akathesia, parkinsonian, tardive dyskinesia, NMS (Neuroleptic malignant syndrome 4% risk of death) agranulocytosis, sedation, orthostatic hypotension, sexual dysfunction, anticholinergic effects
Term
Second Generation "atypical" antipsychotics
Definition
risperidone (Risperdal)
Term
Risperdal side effects
Definition
Agranulocytosis, orthostatic hypotension, weight gain, type II diabetes, dysplidemia, lower risk of EPS, NMS
Term
Risperidone (Risperdal) MOA
Definition
Blocks dopamine and serotonin receptors
Term
How long does it take for Risperdal to take effect?
Definition
1-2 days, significant improvement in 1-2 weeks
Term
Risperdal Assessment
Definition
Weight, vitals, ADLS, Labs (CBC, Drug Levels, Renal/Liver studies), behavior, emotional, medication compliance, therapy compliance
Term
What is pain?
Definition
whatever the patient says it is
whenever the patient says it exists
an unpleasant sensory and emotional experience
associated with actual or potential tissue damage
a personal and individual experience
Term
Goal of pain management
Definition
to maintain a patient pain level that is acceptable to the patient and allows for self-care and ADL’s”
Term
Key principles of pain
Definition
The patient is the expert of their pain
Pain management is a patient right
Non drug interventions should be routinely utilized
Dosing should be individualized
Adverse effects should be actively and proactively managed
Preventative round the clock dosing for moderate to severe pain should be implemented
Term
Pain Transmission Gate Theory
Definition
Tissue injury causes the release of Bradykinin, Histamine, Potassium, Prostaglandins, Serotonin
stimulate “A” fibers or “C” fibers of nerves, starting the pain process
These pain fibers enter the spinal cord and travel up to the brain through a “gate”
This gate regulates the flow of sensory impulses
Closing the gate stops the impulses
If no impulses are transmitted to higher centers in the brain, there is no pain perception
Term
Factors that lower pain threshold
Definition
Anxiety, sleeplessness, tiredness, anger, fear/fright, depression, discomfort, pain, isolation
Term
Factors that raise pain threshold
Definition
Sleep, rest, diversion, empathy, analgesics, anti-anxiety agents, antidepressants
Term
JCAHO pain management standards/appropriate documentation
Definition
assessment, management, education and evaluation
Term
Nacrotic/Opioid agents
Definition
Aka opioid agonists. Derived from poppy.
Term
Opioid agents prototype
Definition
Morphine sulfate, used for moderate to severe pain, do not use abbreviation MS04, easily confused with MgSO4
Term
What class is Morphine sulfate?
Definition
Schedule II. Pregnancy category D
Term
What is Morphine Sulfate's action
Definition
Stimulates specific opiate receptors in the brain to alter pain preception
Term
How can you give Morphine Sulfate?
Definition
Route: IV, SQ, PO, PR, Inhaled
Term
Morphine what is onset, peak, and uration?
Definition
onset 20 min, peak 1 hr, duration 3-7 hours. Given pre-anesthesia, adjunct to mech ventilation
Term
Morphine sulfate side effects
Definition
CNS depression
Respiratory depression
Pupil miosis
Orthostatic hypotension
Constipation
Nausea and vomiting
Facial flushing
Urinary retention
Term
Morphine sulfate contraindications
Definition
Known drug allergy
Pregnancy
Severe asthma or other respiratory insufficiency
Elevated intracranial pressure
Trauma
Disease
Term
Morphine Sulfate: toxicity/overdose management prototype
Definition
Opioid antagonists, naloxone (Narcan)
Term
Onset of Narcan
Definition
1-2 min IV
Term
Half-Life of Narcan
Definition
60-100 min, may need more than one dose
Term
What does Narcan reverse?
Definition
Respiratory depression, sedation, pain control
Term
Nonsteroidal Anti-Inflammatory Drugs (NSAIDS)
Definition
Subclass: salicylate
acetylsalicylic acid (Aspirin)
Subclass: Propionic acid
ibuprofen (Motrin)
Term
NSAIDs have what properties?
Definition
Analgesic
Anti-inflammatory
Antipyretic
Anti-rheumatic
Term
NSAID indication
Definition
Analgesia (mild to moderate)
Anti-inflammatory effects
Antipyretic effects
Antigout effects
Relief of vascular headaches
Platelet inhibition (aspirin only)
Osteoarthritis, rheumatoid arthritis
Term
NSAIDs side effects Gastrointestinal
Definition
Dyspepsia, heartburn, epigastric distress, nausea
GI bleeding
Mucosal lesions (erosions or ulcerations)
Term
NSAIDs side effect Renal
Definition
Reductions in creatinine clearance, acute tubular necrosis with renal failure
Term
NSAIDs Cardiovascular side effects
Definition
Pulmonary Edema
Term
NSAID sublass Salicylates
Definition
acetylsalicylic acid (Aspirin)
Term
acetylsalicylic acid (Aspirin)
Definition
Affects platelet aggregation
Analgesic
Antipyretic
Anti-inflammatory
Anti-thrombotic effect: used in the treatment of MI and other thromboembolic disorders
Term
Aspirin Contraindications
Definition
GI lesions/peptic ulcer disease, bleeding disorders
Term
Lab studies for Salicylates
Definition
Cardiac, renal, liver studies, CBC, platelet count
Term
Salicylates drug interactions
Definition
alcohol, herapin, phenvtoin, oral anticoagulants, steroids, sulfonamides
Term
Why are Salicylates not given to children under the age of 12?
Definition
The risk of Reye's syndrome (sudden (acute) brain damage and liver function problems of unknown cause)
Term
Non-opioid Analgesics
Definition
"Non-Narcotics" such as acetaminophen (Tylenol)
Term
Acetaminophen effects
Definition
Analgesic/antipyretic effects, little to no anti-inflammatory effects, available OTC and in combo products with opioids
Term
Acetaminophen/Tylenol MOA
Definition
Similar to salicylates, blocks pain impulses peripherally by inhibiting prostaglandin synthesis
Term
Indications of Acetaminophen
Definition
Mild to moderate pain, fever, alternative for those who cannot take aspirin products
Term
Acetaminophen Toxicity
Definition
Potentially lethal agents! Healthy adult limit is 4000 mg/day, monitor ALL sources
Term
What does acetaminophen toxicity cause?
Definition
Causes hepatic damage, long term use of large doses can also lead to nephropathy
Term
What is the antidote of acetylcysteine (mucomyst)
Definition
needs 17 doses. yikes.
Term
General Pain Management
Definition
Medicate patients before the pain becomes severe
Offer/administer at regular intervals
Offer before planned painful activity
Dressing change
Ambulation
Pain management includes pharmacologic and nonpharmacologic approaches
Term
Anesthesia
Definition
A drug induced state in which the CNS is altered to produce varying degrees of pain relief, depression of consciousness, skeletal muscle relaxation, and diminished or absent reflexes
Term
General Anesthetics
Definition
Agents that induce the loss of sensation throughout the entire body and includes loss of consciousness . This is necessary for major surgical procedures
Term
Local Anesthetics
Definition
Agents that result in a loss of sensation to a limited body region. Does not cause loss of consciousness.
Term
Regional Anesthetics
Definition
Similar to local anesthesia, except that it involves a larger body area - such as an entire limb
Term
MAC anesthesia (monitored anesthesia care
Definition
Anesthesia that use sedatives, analgesics and other low-dose drugs during diagnostic procedures and minor surgery that allow patients to be responsive and breath without assistance
Term
Analgesia
Definition
Block pain sensation
Term
Relaxation
Definition
Relieve anxiety/relax muscle groups
Term
Hypnosis
Definition
Block awareness
Term
Amnesia
Definition
Block Memory
Term
Loss of reflexes
Definition
Block reflexes that may be affected by procedure
Term
Malignant Hyperthermia
Definition
Life threatening. Caused by failure of Ca+ reuptake into the muscles.
Term
Malignant hyperthermia Symptoms
Definition
Usually within 30 mi of induction. Tachycardia, arrhythmias, prolonged/intense muscle contractions, elevated temperature (>104), flushing, cyanotic skin, hyperkalemia, cardiovascular and respiratory collapse
Term
Prognosis/prevention of malignant hyperthermia
Definition
fatal 10-20 percent of the time. Check family history
Term
Treatment of Malignant hyperthermia
Definition
Give dantrolene (dantrole), give sodium bicarbonate, decrease temp
Term
General Anesthesia pre-procedure pt teaching
Definition
What procedure is being done
When to check in at the hospital
When to stop eating and drinking fluids
When (and if) to stop taking medications
Refrain from drinking alcohol for 24 hours prior to surgery
Stop any herbal supplements 2-3 weeks prior to surgery or per MD instruction
Term
post-op nursing assessment general anesthesia
Definition
Maintain patient safety
Monitor vital signs
Evaluate LOC
Monitor recovery from anesthesia/procedure
Evaluate for nausea/vomiting
Assess for shivering
Evaluate pain
Term
local anesthesia: surface
Definition
Applied or sprayed directly on skin or mucous membranes. Does not penetrate deeper skin layers
Term
Local anesthesia: infiltration
Definition
Injected into deeper skin layers and affects surrounding region
Term
Local anesthesia: Nerve Block
Definition
Injected by surrounding a peripheral nerve and impacts all regions served by that nerve
Term
local anesthesia: Epidural
Definition
Injected into the epidural space surrounding the spinal cord
Term
Local anesthesia: Spinal
Definition
Injected into cerebrospinal fluid, usually in the lumbar region
Term
Effect of local Anesthetics
Definition
Sense of pain affected first, followed by sensations of cold, heat, touch and pressure. Recovery is in reverse order!
Term
prototype of local anesthetics
Definition
Lidocaine (xylocaine)
Term
Lidocaine onset of action, duration
Definition
2-5 minutes, effects last 10-90 minutes
Term
Lidocaine administration
Definition
Surface and infiltration. Never given PO because it is inactivated by GI acids. Available in several strengths
Term
Lidocaine with epinephrine (a vasoconstrictor)
Definition
The addition of a vasoconstrictor extends the action of the lidocaine.
The vasoconstrictor also decreases bleeding into the laceration while suturing.
Cannot use on nose, ears, hands/fingers, feet/toes or penis (use plain lidocaine)
Term
Lidocaine nursing implications
Definition
Assess for allergies prior to administration
Understand use of plain lidocaine vs lidocaine with epi
Read label carefully
Many strengths available!!
Evaluate for pain sensation prior to starting procedure
Assess for gag reflex prior to offering oral fluids/food or medications after oral procedures
Protect anesthetized area from injury
Monitor for systemic effects
Term
Lidocaine pt teaching
Definition
Lidocaine solution for throat or mouth pain should be swished and spit out
Do not consume hot foods/beverages until full sensation returns following oral procedures
Do not chew gum following oral procedure until sensation returns
Protect local area from injury until sensation returns
Discard of lidocaine patches safely
Term
RN considerations for Lidocaine
Definition
Topical – wear gloves when applying
Oral – avoid providing patient with food and water till gag reflex is present
Epidural/spinal – safety precautions, watch for return of motor function, monitor respiratory status
If mixed with epinephrine, avoid ischemic tissues
Carefully check vial (color coded) for correct strength, route and presence of preservatives
Check for allergies
Term
General Anesthesia Prototype
Definition
Propofol (diprovan)
Term
What is the most widly used IV anesthetic?
Definition
Propofol/diprovan
Term
What is propofol's MOA
Definition
Promotes release of GABA
Term
Does propofol have analgesic properties, onset/duration?
Definition
Rapid onset (60 secs) short duration (3-5 min) and no analgesic properties
Term
When do open propofol vials need to be discarded?
Definition
After 6 Hours
Term
Propofol concerns
Definition
for extended sedation, needs to be continuous infusion, can cause profound respiratory depression,hypotension. Has a narrow therapeutic range. Can cause propofal infusion syndrome, has an abuse potential
Term
Propofal infusion syndrome
Definition
to cardiac failure, rhabdomyolysis, metabolic acidosis, and renal failure, and is often fatal.
Term
Parkinson's Disease
Definition
Progressive, neurodegenerative disorder
Usual age of onset is 40-70 years old
Caused by a lack of production of dopamine
Term
What are the 4 cardinal symptoms of Parkinson's
Definition
Tremor
Muscle rigidity
Bradykinesia
Postural instability
Term
Is there a cure for Parkinson's?
Definition
NO. Only symptom alleviations
Term
Dopamine agonists
Definition
Directly activate the dopamine receptors
Term
Dopamine replacement
Definition
Levopoda. A precursor to the synethesis of dopamine
Term
Anticholingeric agents
Definition
Benztropine (Cogentin). Blocks acetylcholine effects, thus allowing for dopamine to have a greater influence
Term
Levodopa (L-Dopa)
Definition
Drug of choice for Parkinson’s
Can cross blood-brain barrier
Undergoes conversion to dopamine
Nearly always combined with carbidopa
Enhances effect of levodopa
Term
What is Sinemet?
Definition
Carbipoda and levodopa combined
Term
Levodopa effect, onset, half life
Definition
2-3 weeks until effect is noticed, onset of action 1-3 hours, short half life (1 hour) need to take several times per day, take on empty stomach (food delays absorption, high protein decreases absorption)
Term
What happens with prolonged levodopa therapy?
Definition
May cause weaning effect, which makes it less effective. Need to increase frequency of dosing. Add another type of med to regime
Term
Levodopa side effects
Definition
Orthostatic hypotension
Nausea/vomiting
Dyskinesias
Postural hypotension
Psychosis
Agranulocytosis
Term
ADHD
Definition
A neuropsychiatric condition
Presents before age 7
Occurs in 3-7% of all children
More males than females
Characterized by:
Impulsive behavior
Lack of attention
hyperactivity
Term
ADHD prototype
Definition
Methylphenidate (Ritalin)
Term
Methylphenidate (Ritalin)M MOA
Definition
Promotes norepinephrine and dopamine release
Term
Who is Methylphenidate (Ritalin) contraindicated in?
Definition
Children under 6
Term
Adverse effects of Ritalin?
Definition
Insomnia, reduced appetite, growth suppression
Term
Ritalin assessments
Definition
Obtain baseline height and weight
Monitor height/weight at each follow-up appointment
Review activity log of symptoms
Term
Ritalin Pt Teaching
Definition
Take am dose after breakfast
Don’t take PM dose after 4pm
Minimize caffeine intake
Don’t stop abruptly
Notify MD: tachycardia/palpitations/angina
Term
Ritalin prescription restrictions
Definition
Need written prescription
No refills can be indicated on written Rx
Limited quantities
Parents should be aware of school policies
Term
Partial seizures
Definition
May or may not involve loss of consciousness
Simple partial
Complex partial
Term
Generalized seizures
Definition
Loss of consciousness
May be convulsive or non-convulsive
Absence
Tonic-clonic
Atonic
Term
What does phenytoin (Dilantin) do?
Definition
Suppress sodium influx
Term
What does acetazolamide (Diamox) do?
Definition
Suppresses calcium influx
Term
What does phenobarbital (luminal) or diazepam (valium) do?
Definition
They potentiate GABA, which is an inhibitory neurotransmitter
Term
what is the most widely used antiepileptic drug?
Definition
Phenytoin (Delantin). it was the first drug to suppress seizures without suppressing entire CNS
Term
Phenytoin (Dilantin) MOA
Definition
Selective inhibition of sodium channels
Term
What type of seizure does Dilantin treat?
Definition
All except absence. Especially effective for tonic-clonic seizures. Affects CYP450 enyzmes
Term
Dilantin dosing
Definition
Dosing is highly individualized
Initial doses usually given twice a day
Has a narrow therapeutic index!
NEVER EVER stop abruptly. Do not use during pregnancy. May use once a day extended capsule when stable dose is determined
Term
Dilantin Dosing levels
Definition
Levels need to be between 10-20mcg/mL
Term
Dilantin Adverse Effects
Definition
CNS
Lethargy
Confusion
Cognitive impairment
Gingival hyperplasia
Decreases effectiveness of birth control
Term
Pt Education for Dilantin
Definition
Good oral hygiene
Seizure frequency chart
Date, time, nature of seizures
Reason for plasma drug levels
Avoid potentially hazardous activities
Wear Medic Alert
Never stop medication abruptly
Notify MD if female and becomes pregnant
Don’t change brands without MD approval
Promote patient adherence to therapy
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