IM1- PHARM COMPREHENSIVE QUIZ (PHARM 1,2,3,4 Flashcards
What is an adverse drug reaction (ADR)
“Any noxious, unintended, undesired effect that occurs at normal drug doses”
What are some mild ADR effects?
- Drowsiness
- Itching
- Nausea
- Rash
What are some severe ADR effects?
- Respiratory depression
- Organ injury
- Anaphylaxis
- Death
What are some ADR Considerations?
- What increases the risk?
-Multiple illnesses
-age - What is the impact- for whom?
- How can harm be minimized
- Checking the mar
-Verify arm band - ask allergies
- Checking the mar
Define side effect
A nearly unavoidable secondary drug effect produced at therapeutic doses
Define toxicity
Any severe ADR, regardless of the dose that caused it
Define allergic reactions
Immune response, the intensity of which is determined by immune system, not dosage
Define idiosyncratic effect
Uncommon drug response resulting from genetic predisposition
Define Paradoxical effect
The opposite of the intended drug response
Define iatrogenic disease
Occurs as the result of medical care or treatment including disease produced by drugs.
Define physical dependence
Body has adapted to drug exposure in such a way that abstinence syndrome will develop if discontinued
Define carcinogenic effect
The ability of certain medications and chemicals to cause cancers
Define teratogenic effect
Drug-induced birth defect
What are some characteristics of hepatotoxic drugs. list 5
- Liver is the primary site of metabolism
- Drugs are leading cause of liver failure
- Over 50 commonly given drugs are hepatoxic
- Some drug metabolites are hepatoxic
- Combining hepatoxic drugs increases risk of liver injury.
What are characteristics of QT drugs?
- QT drugs - prolong QT interval
- Can cause life-threatening dysrhythmias
- QT drugs found in several drug classes
- Females at higher risk
- Multiple QT drugs should not be given concurrently
True or false: Some medications are not appropriate for patients with prolonged QT interval
True
How are kidneys affected by ADR
- Because kidneys filter metabolites out of body cumulative exposure can cause damage
How are the ears affected by ADR?
- Ototoxic reactions can cause permeant damage
How are the lungs affected by ADR?
- Can be pneumotoxic
over 600 drugs are pneumotoxic
What are some questions you should ask when trying to determine if your patient is having an ADR?
- Did symptoms appear shortly after the drug was first used?
- Did symptoms abate when the drug was discontinued
- Did the symptoms reappear when the drug was reinstituted
- Is the illness itself sufficient to explain to explain the event
- Are other drugs in the regimen sufficient to explain the event.
What are some ways to minimize ADRs?
- Early identification is key
- Know major ADR’s that a drug can produce
- Monitoring of organ function if toxic drugs are being given
- Individualizing therapy
- Patient teaching
What are black box warnings?
- Strongest safety warning a drug can carry and still remain on the market
What does the black box warning contain?
Concise summary of the adverse effects of concern
True or false: The most serious medication warning required by the FDA is the black box warning?
True
What are some considerations when faced with a BBW? (black box warning)
- Does the potential benefit of treatment outweigh the risk?
- Are there safer (and equally effective) alternatives?
- Would a safer but less effective alternative be appropriate?
- Is the boxed warning applicable to this specific patient?
- Can action be taken to ameliorate the potential for an adverse reaction?
Define a medication error?
Any preventable event that may cause or lead to inappropriate medication use or patient harm while the medication is in the control of the healthcare professional, patient, or consumer
True or false: A medication error can cause both direct and indirect harm?
True
What are causes of medication errors?
- Human factors
- Communication mistakes = 90% of fatal errors
- Name confusion
4 Packaging, formulations and delivery services - Labeling and reference materials
True or false: If the same dose of a drug is given to a big person and a small person, the drug concentration will be lower in the small person?
False- the drug concentration would be higher
What are some factors affecting individual response to a drug?
- Body composition
- Age
-Infants– immature organ system- Older adults – decline in organ function
- Pathophysiology
- Tolerance
- Comorbidities and drug interactions
- Diet
- Patient compliance
- Medication Errors
How does kidney disease affect an individual response to a medication?
Reduces the rate of drug excretion- drugs may accumulate to toxic levels
How does liver disease affect an individual response to a medication?
Reduces rate of drug metabolism- drug may accumulate to toxic levels
How does tolerance affect an individual’s response to a drug?
it decreases responsiveness to a drug as a result of repeated drug administration
How does comorbidities and drug interactions play a factor in an individual’s response to a drug?
- Drugs taken to manage one condition may complicate management of another
How does a diet play a factor in an individual response to a drug?
Good diet can elicit therapeutic responses and reduce harm from ADR’s
Some foods can interact with drugs and cause ADR’s
How does patient compliance play a factor in an individual’s response to a drug?
- Failure to take
What are some reason a patient may not be able to comply with taking medication?
- Manual dexterity and visual acuity
- Intellectual capacity & Psychologic state
- Attitude and belief toward drugs
- Ability to pay
What are some geriatric concerns with drug therapy?
- Organ function
- Comorbidities
- Polypharmacy
- Noncompliance
In the elderly the ability to to absorb drugs……?
- Rate of absorption slows
- Gastric acidity declines
In elderly the ability of distribution is affected by many factors including…..
- Increased body fat % —> plasma drug levels reduced
- Decreased % lean body mass—> plasma drug levels increased
- Decreased total body water—> plasma drug levels increased
- Decreased serum albumin concentration —> plasma drug levels increased
In Elderly metabolism tends to _____ with age
decline (highly variable)
In elderly excretion begins to decline progressively in _____ adulthood (wait… what?? not sure what I was asking here sorry)
Early
What is the most important cause of ADR’s in older adults?
Excretion
True or false: ADR’s are 7 times more common in older adults?
True
ADR”s in the elderly population account for what percentage of hospital admissions?
16 %
ADR’s in the elderly population account for what percentage of all medication-related deaths?
50%
True or false: ADR’s are mostly dose related in elderly?
True
True or false: ADR’s in the elderly are unavoidable?
False– Mostly avoidable
True or false: older adults are less likely to share alcohol or recreation drug use?
True
True or false: Symptoms of ADR’s in the elderly tend to be nonspecific?
True
What are important risk factors for ADR’s in the elderly?
- Reduced renal function- drug accumulation
- Polypharmacy
- Greater severity of illness
- Low therapeutic index drugs
- Increased individual variation
- Inadequate supervision of long-term therapy
- Poor adherence
What is the goal of drug thearpy?
Reduce symptoms and improve quality of life
What should the nurse plan look like for drug therapy/preventing ADR’s?
- Assessment– drug history, compliance
- Monitoring– clinical responses & Plasma drug levels
- Teaching– How to take meds, strategies for compliance
- Advocating– simplest regimen possible, easy to open containers, large print, cost
What are the different approaches to medicne?
- Integrative health
- Alternative medicine
- Complementary medicine
What is integrative health?
A coordinated approach to using complementary and conventional medicine
What is alternative medicine?
Used in place of conventional medicine
What is complementary medicine?
used together with conventional medicene
What are some characteristics of conventional medicine?
- Focuses on physical components of the ill patient
- Emphasis is placed on dx and cure based on physical symptoms
- Medicine, surgery, etc
What are some characteristics of alternative medicene?
- Takes a holistic “multibody” approach
- takes into considerations the complexity of each person
- Embraces self-healing forces, spirituality, balance between internal/external forces
Complementary and alternative medicine thought process is as follows….
- strong connection between mind and body—> self-reliance on healing—> body has own energy for healing—> use of nutrition and natural products—>emphasis on individuality —>
What has the use of CAM (Complementary and alternative medicine) increased?
- Overall dissatisfaction with conventional healthcare
- Desire for greater control over one’s health
- Need to blend cultural and philosophical congruence with personal beliefs about health and illness
- belief in the effectiveness of alternative therapies
What are major areas of therapeutic objectives?
- Anxiety
- Pain
- Illness
- Depression
- Insomnia
What are types of manipulative body and energy-based methods (complementary/alternative medicine)
- Massage therapy
- Reflexology
- Accupressure
What benefits can acupressure/acupuncture have?
- Pain relief
- Helps relieve migraine/headache
- Anesthesia
What benefits can yoga have?
- Life forces correct balance and flow
- Concentration, strength, flexibility, symbolic movements
- Helps with breathing, movement and posture
What benefits can Tai chi have?
- Promotes the flow of energy throughout the body
- Reduces sx. of fibromyalgia
- Used in cardiac rehab programs can lower BP
What is Reiki?
It is a Japanese technique for stress reduction and relaxation that also promotes healing
It is based on the idea that an unseen “life force energy” flows through us and is what causes us to be alive
What are some biologically based therapies?
- Dietary therapies
- Herbs
- Aromatherapy
- Vitamins
What are some reasons for dietary supplement?
- Perceived as “safer and healthier”
- Sense of control
- Emotional comfort
- Cultural influence
- Limited access to healthcare
- Convenience
- Aggressive marketing
True or false: FDA categorized herbals as food and nutritional supplements not as drugs?
True
Dietary supplement health and education acts….( review slide 15 complementary and alternative medicine power points)
- package labeling
- adverse effects
- Impurities, adulterants, variability
Current good manufacturing practices (CGMP)…. review slide 15 on complementary and alternative medicine PowerPoint)
- Require quality control procedures
- Labeling to reflect active and inactive ingredients
What are some federal reporting requirements
dietary supplement (nonprescription drug consumer protection act)
- Deaths
- Hospitalizations
- Life-threatening experiences
- Persistent or significant disabilities
- birth defects
What is the USP?
United states pharmcopia
What do the USP, ConsumerLab, NPA, NSF are private quality certification programs…. what do they help with… review slide 17
- CGMP (current good manufacturing practice)
- Purity
- Identity
- Potency
- Dissolution
- Accuracy of labeling
What do RNs need to know? Alternative med (herbals)
- Major drawback:
May delay important diagnosis and treatment - Nursing intervention:
Make certain MD or PCP is aware of patient’s use of herbals - Nursing Action:
What to assess & instruct patient regarding herbal therapy
What information should we try and gather from the patient about herbal information
- Always ask about the use of herbals when getting medication history
- What is their story- why the patient is using the plant medicine or alternative therapy
- Teach patients to look for products labeled ‘Standardized’ - these more likely to have accurate amounts and a more purified form of the herb
- Goal is to help patients be informed consumers
What are commonly used herbs?
- Gingko Bilboa
- Garlic
- Ginger root
- Feverfew
- Echinacea
- St. John’s Wort
- Valerian
- Kava
- Ephedra
- Cannabis*
- CBD*
What benefits can Ginko biloba have?
- Reduce memory problems, dementia, peripheral vascular disease
- Antioxidant & Vasodilatory properties
What should we be aware of when a patient is taking Ginko Biloba?
1.It can cause bleeding when used with anticoagulants
2. Avoid before surgery
What benefits can garlic have?
- Lowers cholesterol, lowers BP, natural antibiotic
- Natural anit-platelet agent
What should we be aware of when a patient is taking garlic?
- Potentiates anti-diabetic drugs
- avoid before surgery
What benefits can ginger root have?
- Used to treat nausea, joint pain
What should we be aware of when a patient is taking ginger root?
- Bleeding
- Irregular heart rate
- Blood pressure
- Blood sugar levels
What benefits can feverfew have?
- Helps with migraine prophylaxis
What should we be aware of when a patient is taking feverfew?
- Increased risk of bleeding
- Can cause uterine contractions. Avoid taking if pregnant can cause uterine contractions which can cause a spontaneous miscarriage
What benefits can Echinacea have?
- Builds immunity
- Wound healing
What are some things to be aware of when a patient is taking echinacea?
- Immune system suppression after use over 8weeks
What are some benefits of St. John’s wort
- May ease mild to moderate depression
What are some things to be aware of when a patient is taking St. John’s Wort
- Contraindicated for major depression
- Do not use with other anti depressants
What are some benefits of Valerian root?
- Generally safe, but ineffective
What are some things to be aware of when patient is taking valerian root
- Potentiates CNS depressants
What are some benefits of kava?
- Relieves anxiety
- Promotes sleep
- Relaxes muscles
What are some things to be aware of if a patient is taking Kava?
- Liver damage. No restrictions on the drug in the US but in Canada and European countries it is outlawed.
What are some benefits of Ephedra?
NONE- used to be used for a performance enhancement drug but it is NOT good for our bodies
What are some things you should know if a patient is taking ephedra?
- Damaging to heart and CNS
- Banned from sale in US
What are some things you should know about Cannabis/CBD
Cannabis is good for nausea. There is a prescription drug by the name of Marinol that is used in cancer patients.
CBD is not regulated at all for strength, purity