Pediatric Drug Safety - Block 4 Flashcards
What is Kefauver-Harris Amendment?
- Refired consent for all human subjects
- ADRs reported from manufacturers to FDA
- Proof of efficacy and safety in new drug approvals
What is the Poison Prevention Packaging Act of 1970?
Requires child resistant (not proof) packaging for all drugs and cosmetics unless the product is:
1. Excepted products
2. One size OTC product for elderly or hadicapped
3. Prescriprion with request for noncompliant packaging
What is the definition of child-resistant?
80% of children cant open package, 90% adults can open
What is med error?
Any preventable event leading to inappropriate med use or patient harm related to professional, patient, or consumer or professional practice
What is a category I med errors?
Error resulting in death
What is a category a med error?
Circumstances or events that have the capacity to cause error but doesnt
How do you calculate pediatric BSA, BMI, and IBW?
How do you approximate pediatric dosing?
Clarks Rule: Adult dose x [BSA/1.73m^2]
Oral extemporaneous preparations include:
- Ensure correct base product used (strength) - API
- Vehicle selection
- Labels and records
What is the purpose for stock dilution?
Prevent doses of less than 0.1 mL having to be administered
Facotrs affecting admin and adherance?
- ADR
- DOsing frequency
- Caregiver dependence
- Drug formulation (paliapility)
- Inappropriate measurements
- Belief systems
How do we reduce risk in compounding?
- Good technique
- Standardize compounded concentrations
How do we reduce risk during verification?
- Weight based dose
- Double check units
- Double check for common errors (decimals and volumes)
- Don’t hesitate to call or ask questions
How do we reduce risk in dispensing?
- Unit dose formulations
- Appropriate admin tools
- Detailed counseling
What are the 5 rights of med safety?
- Right dose
- Right medication
- Right patient
- Right time
- Right route
What are common dosage forms for children?
- Tablet/capsule (ensure child can swallow)
- Liquid solution or suspension (suspension is most common)
What are the key considerations of selecting a PO formulation?
- Palatability
- Texture
- Uniformity
- Stability
- Excipients/preservatives
Benzyl alcohol
Toxicity, ADR, common products, Age restriction
Tox: Incomplete liver maturation to convert to metabolite
ADR: metabolic acidosis, respiratory depression, gasping syndrome
Products: Heparin, NS, Zyrtec and Benadryl chewables
Age: Not safe <3YO
Propylene glycol
Toxicity, ADR, common products, Age restriction
Tox: Impaired alcohol dehydrogenase enzyme systems in young children
ADR: CNS depression, sz, arrhythmias, hypotension, respiratory depression, hemolysis, AKI
Products: continuous inf of esmolol, lorazepam, phenobarbital
Age: Not safe in <6YO
Ethanol
Toxicity, ADR, common products, Age restriction
Tox: Impaired alcohol dehydrogenase enzyme systems in young children
ADR: Hypoglycemia, hypothermia, acidosis, tachycardia, seizures, loss of consciousness
Products: Dexamethasone, furosemide, and digoxin oral solutions
Age: Not safe in children <6 yo
Benzalkonium chloride
Toxicity, ADR, common products, Age restriction
Tox: Oxidative stess
ADR: Pulmonary decline and risk for resp support
Products: NaCl OTC nasal spray, albuterol, prednisolone ophthalmic susp
Age: Caution in <2YO
What are excipents that are a concern in children?
- Benzyl alcohol
- Propylene glycol
- Ethanol
- Benzalknoium chloride
What are measuring devices you shouldn’t use for medication?
Kitchen measuring spoons
Normal spoons
What are the considerations of rectal formulations?
- Absorption and expulsion
- Developed colon (neonates at risk for rectal tears)
- Size/weight and administration
Common pediatric suppositories?
- Bisacodyl
- APAP
- Ibuprofen
- Glycerin
Consideration for inhaled formulations?
- Delivery devices (puffer, neb, inhaler)
- Coordination
Injection use in peds?
- IM not routinely used
- IV may be difficult to maintain
- Parenteral dose volumes need to be considered as well as fluid composition
SubQ volumes for children?
<1 mL
Nasal and otic formulations for children?
Rapid absorption IN
Normally concnetrated therapy
Ocular/Transdermal formulations for children?
Medications concentrate in the eye (thin membranes and less tear volume)
Systemic effects
What is the poison control hotline?
1-800-222-1222
Describe the trend of children and poisons?
Children are curious and mimic what they see
What are the approaches to poisoning?
- Quick response
- Detailed history
- Stabilize airway and cadriopulmonary system
- GI decontamination
- PALS
What is a toxidrome?
Combination of manifestations that help with the identification of toxins (tools for rapid detection of the suspected cause)
What is the toxidrome for anticholinergics?
- Red as a beet
- Dry as a bone
- Blind as a bat
- Mad as a hatter
- Hot as a hare
- Full as a flask
What are the cholinergic toxidromes?
Diarrhea, urination, miosis, bradycardia, emesis, lacrimation, salvation, sweating
Opioid toxidrome?
Myosis, out of it (sedation), respiratory depression, pneumonia (aspiration), hypotention, infrequency (constipation, urinary retention), nausea, emesis
TCA toxidrome?
Tachycardia, cardiac effects (QTc, arrhythmias), anticholinergic effects, sedation
Subjective eval of poisoned child?
- Drug/substance
- Timing
- Nature of presentation
- Amount
Objective eval of poisoned child?
- Oxygen saturation
- blood glucose
- Acid/base status
- Electrolytes
- Drug screens
- ECG
APAP antidote?
NAC
Anticholinesterase antidote?
Atrophine
Pralidoxime
Anticholinergic antidote?
Physostigmine
BZD antidote?
Flumazenil
Beta blocker antidote?
GLucagon
CCB antidote?
Glucagon
Warfarin antidote?
Vitamin K
Cyanide antidote?
amyl nitrate, sodium nitrate, sodium thiosulfate
cyclophosphamide antidote?
mesna
digoxin antidote?
Digibind
Digoxine immune fac
Dopamine antidote?
Phentolamie
EPS antidote?
Benadryl
Ethylene glycol antidote?
Fomepizole
Heparin antidote?
Protamine sulfate
Insulin antidote?
Glucose
Iron antidote?
deferoxamine
Narcotics antidote?
Naloxone
Opioid analgesic antidote?
Nalmefene or naloxone
Potassium antidote?
Albuterol, insulin, glucose, NaHCO3, kayexalate
TCA antidote?
Phyostigmine or NaHCO3
WHat is the goal for decontamination?
To remove or bind the substance prior to absorption
Main methods of decontamination?
- Syrup of Ipecac (not used)
- Gastric levage (not used)
- Activated charcoal
- Whole bowel irrigation
Activated Charcoal
MOA, When to use, Dosing
MOA: absorption of ingested toxin via increased SA
Use: 2 hr of ingestion, powder mixed with water -> slurry
Dosing: Activated charcoal to toxin ration (10:1)
* Alt: 0.5-1.0 g/kg (max dose: 50 g)
What is gastric lavage?
Stomach pumping: Large tube is inserted in the mouth/nose into the stomach and contents are aspirated
Complications: aspirationpneumonia, esophageal/gastric perforation, electrolyte imbalance, death
What is whole bowel irrigation?
Induces liquid stool and mechanicall flush pills, tablets, or packets from the GIT
Whole Bowel Irrigation
Indication, Products, Rate
Indication: Sustained-release/enteric coated pill ingestions
* Large ingestions not fully bound by AC
* Ingestion of illicit drug packets
Products: Golytely, Colyte, Nulytely
Rate: WBI is continued until the rectal effluent is clear
* Children 9 months to 6 years: 500 mL/hr
* Children 6 to 12 years: 1000 mL/hr
* Adolescents and adults: 1500 to 2000 mL/hr
Syrup of Ipecac
MOA, Dosing, Counseling, ADR
MOA: induce vomiting via local activation of sensory receptors in the GIT and stimulation of chemoreceptor trigger zone
Dosing: 5-10 mL (6-12 months old), 15 mL (1-12 years), 30 mL (adolescents and adults)
Counseling: Patient should be upright
* Followed by 4 to 8 ounces of water immediately after administration
* Use within 4-6 hr of ingestion
ADR: Aspiration pneumonia
Pediatric patient is unconscious with no parents, what is a quick method of determining what to give the patient?
Broselow tape
WHat is PALS?
Pediatric Advanced Life Support