Unit 2 Slides Flashcards
Jose usually has the equivalent of 10 cups of a day. One day he cuts out caffeine “cold turkey”. Which of the following may NOT be characteristic of caffeine withdrawal?
a) Decrease in alertness
b) Decrease in heart rate
c) Vasodilation in brain
d) Vasoconstriction in brain
d) Vasoconstriction in brain
Withdrawal symptoms are experiences upon termination of a drug by:
a) Everyone
b) Many people
c) Very few people
d) People with blood type O
b) Many people
Caffeine undergoes biotransformation in the:
a) Brain
b) GI tract
c) Liver
b) Mouth
C) Liver
Caffeine can be lethal in high enough doses
a) True
b) False
a) True
Which of the following is Not a theory regarding the cause of Schizophrenia
a) Not enough dopamine
b) Too much dopamine
c) Too much dopamine in some parts of the brain and too little in others
a) Not enough dopamine
Which of these is a negative symptom of schizophrenia
a) Delusions
b) Hallucinations
c) Flat affect
d) Lack of friends
c) Flat affect
If someone is refusing to take medication or time release of the medication is desirable this route of administration maybe preferable:
a) Intramuscular
b) Intravenous
c) Oral
d) Topically (patch)
a) Intramuscular
The long half-life of antipsychotics means the drug:
a) Dose not need to be taken often (daily)
b) Must be taken several times per day
c) Needs only to be taken weekly
d) Remains at half strength for a long period of time
a) Dose not need to be taken often (daily)
Parkinson’s type symptoms may result from taking antipsychotic medication because these medications can result in:
a) Decrease in dopamine activity in the brain
b) Increase in dopamine activity in the brain
a) Decrease in dopamine activity in the brain
The primary action of typical antipsychotics in the brain is to:
a) Block dopamine
b) Block serotonin
c) Partially block dopamine
d) Partially block serotonin
a) Block dopamine
Which of these is NOT an EPS?
a) Akathesia
b) Dystonia
c) Vomitting
d) Tardive dyskinesia
c) Vomitting
Neuroleptic
*Antipsychotics are often referred to as “neuroleptics” especially (but not exclusively) the typical, 1st generation drugs like thorazine, mellaril, halloo, navane, prolix, etc.
Neurolepsis (Contd…..)
- In the early literature the drugs were said to cause “neuroleptic”, characterized by 3 major behavioral effects:
- Psychomotor slowing
- Emotional quieting
- Affective indifference
Phenothiazines
- Most typical antipsychotics are phenothiazines - a name for a type of chemical structure
- Thorazine, Mellaril, Stelazine, Compazine, Serentil, Prolixin
- Other chemical structures are:
- Butyrophenones: Haldol
- Thioxanthenes: Navane
A Little More on Side Effects of Antipsychotics
-Sum side effects common to some Specific typical & A-typical antipsychotics & discuss some clinical implication for BC analysts
Side Effects: Both Typical & Atypical Antipsychotics
- Anticholingeric side-effects
- Dry mouth - thirsty
- Blurry vision - Trouble seeing
- Sedation - Sleepy
- Memory problems - Learning
- Constipation & difficulty urinating
- Anorgasmia -Private time….
Clinical Implication of All Anticholinergic Drugs
- I need water Plydipsia
- Bx prob/medication adjustment or Both?
- Constipation, diet & toileting skills
- Anorgasmia & the prob it may cause
- Aggression, property destruction, SIB
EPS and Typical Antipsychotics
- Extra-Pyramidal signs & symptoms
- These side effects are most often associated with typical antipsychotics, likely due to the relationship with dopamine (specifically the D2 receptor)
EPS and Typical Antipsychotics
Contd…
- However, recent studies indicate that A-typical antipsychotics Also show a higher incidence of these side effects than initially suspected, especially with long term use. (D2 also & Serotonin)
- Also some atypical (e.g. Risperadal or Zyprexa) may show higher incidence than others (Clozapine, Seroquel)
Parkinsonism, Dystonia, Dyskenesia or Akathisia?
- All of these are characterized by:
- Movement disorders, some involuntary
- Muscle stiffness (all but akathisia)
- Cogwheeling (both in Parkinsonism & Tardive dyskinesia)
- How can you tell them apart?
Dyskenesia, Dystonia
- Tardive dyskenesia: Involuntary lip smacking, tongue thrusting, grimacing, chewing, walking in place, pelvic thrusts, hums or grunts
- Dystonia:
- Sustained muscle contractions
- Involuntary movements of whole body
Parkinsonism, Akathisia
- Parkinsonism:
- Shuffling gait, stooped posture, drooling, pill rolling, tremors, masked expression
- Akathisia:
- Restless motion
- Leg crossing & Uncrossing
- Pacing
Dyskinesia Vs Akathisia
- Dyskinesia: You cannot sit still
- Akathisia: You cannot sit down
Some Possible Life Threatening Idiosyncratic Reactions
- NMS (Neuroleptic malignant syndrome): Stiffness, Flu-like, fever.
- Antipsychotics & the elderly
- Mellaril & heart issues
- Clozapine & agranulocytosis
- Any medication can potentially cause an allergic/immune response
Non-life Threatening but some Imp-to-know Side Effects
- Risperdal - weight, gynecomastia
- Clinically - Food EO, heavier & hard to block/redirect; embarrassment
- Haldol (and others) -Akathesia
- Clinically - increased “agitation”
- Mellaril - Highest anticholingeric side effects
- Clinically - Thirst, constipation, etc.
Withdrawal effects are generally not problematic with anti-psychotic drugs because the drug:
a) Has a very short half-line
b) Is eliminated quickly from the body
c) Is retained in fat cells & slowly released
d) Rapidly results in tolerance
c) Is retained in fat cells & slowly released
Anti-psychotic function as positive reinforcers and are therefore often drugs of abuse
a) True
b) False
b) False
Which of the following is not a behavioral function of antipsychotic drugs?
a) AO for food and fluids
b) EP for food and fluids
a) AO for food and fluids
Anti-anxiety/sedative drugs can be administered _________ for fast acting effects
a) As as inhalent
b) IV
c) IM
d) Orally
b) IV
Withdrawal syndrome maybe dependent upon:
a) The dose of the drug
b) The gender of the person taking the drug
c) The number of other drugs in the bloodstream
d) The weight of the person taking the drug
a) The dose of the drug