Updated or Reaffirmed 2019/2020 or New 2020 CPS Flashcards
On what measures of health do Indigenous children lag behind their non-indigenous peers? (4+2)
- Infant mortality
- Early childhood development
- Acute healthcare needs
- Mental health
They also have:
- Increased rates of substance abuse (tobacco, prescription drugs, alcohol)
- Increased rates of suicice
What are some additional social determinants of health that help to understand the root causes of inequality affecting Indigenous children and youth? (3)
- Kinship and support networks
- Racism
- Loss of traditional language, land and social identity
As per the core principles of the TCPS 2, what must take priority over every other research consideration?
‘Respect for persons’, or the welfare and integrity of individuals - it is unacceptable to treat individuals as a means to an end.
What are some possible negative impacts of a research project on Indigenous communities? (3)
- Discrimination
- Stigmatization
- Loss of control over research outcomes
In developing countries, what are the benefits of Kangaroo Care for low birthweight infants? (4)
Reduction in:
- Mortality
- Severe illness
- Infection (includinig nosocomial)
- Length of hospital stay
In high income countries, what are the benefits of Kangaroo Care for preterm infants? (5)
- Cardiorespiratory and temperature stability
- Sleep organization and duration of quiet sleep
- Neurodevelopmental outcomes
- Breastfeeding
- Modulation of pain responses
What are the benefits of breast milk for preterm infants?
- Decreased incidence of infections
- Decreased incidence of NEC
- Improved growth
- Improved neurodevelopmental outcomes
What infectious diseases does human milk feeding decrease the incidence of in infancy? (6)
- Bacterial meningitis
- Bacteremia
- Diarrhea
- Respiratory tract infections
- Otitis media
- Urinary tract infections
What are some additional benefits of breastfeeding? (2)
- Enhanced performance on neurocognitive testing
- Economical (no need to purchase bottles and formula)
What are some health benefits for mothers who breastfeed?
- Decreased incidence of breast and ovarian cancer
- Delay in return of ovulation
- Greater post-partum weight loss
Contraindication to breastfeeding in Canada? (4)
- HIV positive mother
- Mother receiving cytotoxic chemotherapy for duration of treatment
- Mothers receiving radioactive isotopes or radiation therapy during treatment
- Classic galactosemia
What important pathogens must be considered in situations of needle stick injuries? (3)
- Hepatitis B virus
- Hepatitis C virus
- HIV
How can needle stick injuries be prevented? (4)
- Education of children, parents, educators, health care providers about the dangers of handling used needles, syringes, and other objects contaminated with blood, including sharps containers
- Children should be made aware of these rules at an early age
- Communities should be responsible for providing adequate cleanup of parks and schoolyards
- Communities must commit to and support addiction treatment and infection prevention programs for injection drug users
The risk of infection from exposure to a blood by a needle stick injury depends on? (3)
- The size of the needle
- The depth of penetration
- Whether blood was injected, and then amount of blood introduced and concentration of virus in that blood
Which is the most stable of the blood-borne viruses, and can be transmitted by a minute amount of blood?
Hepatitis B virus
How long can HBV survive for under optimal conditions, in discarded needles?
Up to 1 week
What to do with respect to HBV prophylaxis if child is known to be anti-HBsAg antibody positive OR HbsAg positive?
No action required.
What to do if child with needle stick injury has not been fully vaccinated against HBV? (1)
Test for anti-HbsAg antibody and HBsAg immediately. Await results if available within 48h.
What to do if child who has not been fully vaccinated with needle stick injury is anti-HBs-Ag antibody AND HBsAg negative?
-Give HBIG immediately (ideally within 48h of injury; efficacy unknown if >7 days after injury)
Dose 0.06ml/kg, administered IM
-Give HBV vaccine (as soon as possible, and at latest within 7 days of injury). Arrange to complete vaccine series.
What to do if child who has not been fully vaccinated with needle stick injury is anti-HBsAg positive (but HBsAg negative)?
Complete HBV vaccine series according to schedule.
What to do if child who has not been fully vaccinated with needle stick injury is HBsAg-positive (anti-HBsAg negative)?
Discontinue vaccine series. Arrange appropriate follow-up.
What to do for child with needle stick injury who is not fully vaccinated if results of anti-HBsAg antibody and HBsAg not available within 48h?
- Give HBIG immediately
- Give a dose of HBV vaccine (as soon as possible, and at latest within 7 days of injury)
- When results are available, proceed with vaccine and follow-up.
What to do for child who has been fully vaccinated with needle stick injury?
Test for anti-HBsAg antibody. If results not available in 48h, give one dose of HBV vaccine.
What to do for child who has been fully vaccinated with needle stick injury if anti-HbsAg antibody positive?
No further action required.
What to do for child who has been fully vaccinated if anti-HbsAg antibody negative? (3)
- Test for HBsAg.
- If HBsAg-negative, give HBIG and dose of HBV vaccine
- If HBsAg positive, arrange appropriate follow-up.
What is the risk of acquiring HCV from an occupational needle stick injury when the source was infected?
3-10%
What is the risk of acquiring HIV from a hollow-bore needle with blood from a known HIV-seropositive source as a result of occupational needle stick injury?
0.2-0.5%
Steps to take following a needle stick injury? (9)
- Clean the wound thoroughly with soap and water as soon as possible after the needle stick injury.
- Do not squeeze the area to induce bleeding.
- Assess the extent of the wound and probability of exposure to blood through open skin lesions or mucous membranes.
- Determine the child’s immunization status for tetanus and HBV
- Administer tetanus vaccine +/- tetanus Ig, when indicated
- Document the circumstances of the injury - date and time of injury or exposure, where needle was found, how injury happened, description of the needle, whether or a syringe was attached, whether blood was visible in or on the needle or syringe, whether the injury caused bleeding, whether the previous user of the needle is known
- Obtain a blood sample for:
- Baseline HBV, HIV and HCV status
- In the rare instance where antiretrovirals are being started, CBC + differential, AST, ALT, alk phos, BUN, creatinine
- Testing needles or syringes for viruses is NOT indicated - results are likely to be negative, but a negative result does not rule out the possibility of infection
- When the user of the needle is known, attempts should be made to assess for risk factors for blood-borne viruses and, if possible, to test for these viruses. Pending results, proceed as for an unknown source.
When is ART prophylaxis recommended? (2)
- Only in cases of high risk, when the source is considered likely to have HIV
- Incident involved a needle or syringe wth visible blood, and blood may have been injected
When is the source of a needle considered to be high risk for HIV transmission? (2)
- Source known to have HIV
- Source unknown but presumed or known high prevalence (>15%) of HIV in local injection drug user population
What factors to consider about the device when assessing risk for HIV transmission after needle stick injury? (4) What would be highest risk?
- Size of needle
- Whether it is hollow bore
- Presence of visible blood in needle or syringe
- Probability of exposure to drying, head and freezing since use
- Large lumen devices with visible blood = highest risk
What factors to consider about the injury when assessing risk for HIV transmission after needle stick injury? (2) Which injuries are high vs. low risk? (5)
- Depth and extent of trauma (scratch vs deep cut, injection of blood, bleeding at site)
- Injuries with actual blood injection are high risk
- Other high risk exposures: child put syringe with visible blood into mouth and possibly injected blood, splashes involving large volume of blood coming into contact with extensive areas of non-intact skin
- Superficial scratches are low risk
- Other low risk: suspected but unobserved splash into eyes or lips
What is the optimal time frame for starting antiretrovirals after a needle stick injury? After what timeframe is it no longer indicated as it is of no benefit?
- 1-4 hours
- 72 hours
What ART agents are recommended for young children (<12 y o)? (3)
Zidovudine PLUS lamivudine PLUS lopinavir/ritonavir
What ART agents are recommended for children who are at least 12 y o and at least 35kg?
Emtricitabine PLUS tenofovir PLUS raltegravir or dolutegravir (latter three better tolerated than those recommended for younger children)
What antiretroviral to use if renal function abnormal?
Tenofovir
What is the duration of HIV ppx?
28 days
What do you need to advise parents re: needle stick injuries? (3)
- Need to test for acquisition of infection
- Need to complete HBV vaccinatio schedule
- Need to monitor side-effects if on ART ppx
How to perform follow-up with respect to HIV?
- If on ART ppx:
- Reassess at 2-3 days by phone or visit
- Follow-up at 2 AND 4 weeks for assessment of adherence, drug tolerance, CBC + diff, AST, ALT and creatinine
Follow-up schedule for needle stick injury management?
- At 4 weeks: second HBV vaccine dose if only one previous doese received and if no antibody or antigen was detected on initial testing
- At 4-6 weeks: test for anti-HIV antibody
- At 3 months: Test for anti-HIV antibody (unless previously positive) and anti-HCV antibody
- At 6 months: anti-HIV, anti-HCV and anti-HBsAg antibody (unless previously positive). HIV test may be omitted if negative at 3 months using fourth-ggen combo HIV p24 Ag-HIVI Ab test and chilid doesn’t have HCV infection (HCV delays HIV seroconversion). Give third HBV vaccine dose if only two previous doses received
What if anti-HBsAg antibody test negative at 6 months (after 3rd dose of vaccine)?
- Test again at 1-2 months after 3rd dose of vaccine
- If still negative, test for HBsAg.
- If HBsAg negative, give fourth dose of HBV vaccine, and test again 1-2 months later.
- If anti-HbSAg antibody still negative, refer to specialist.
What is the leading cause of death in Canadian Indigenous children and youth?
Unintentional injuries