Final unit 7-12 Flashcards
Tuberculosis (TB)
infectious disease caused by bacteria that spread through the air when someone coughs, sneezes or, to a lesser degree, talks. It usually attacks the lungs
Certain populations in Canada, are disproportionately affected by TB
First Nations
People who are particularly at risk of TB include poverty-stricken and/or homeless people; inner-city residents, especially those prone to excess alcohol use and injection drug users; elderly people, especially single men; and individuals with HIV.
West Nile Virus
mosquito-borne virus. Mosquitoes become infected by feeding on the blood of birds that carry the virus, and then transmit the virus by biting other birds, animals, or people
Antimicrobial Resistance
bacterial resistance to antibiotics
eg. MRSA,gonorrhoea
Sexually Transmitted Infections
- infections and diseases transmitted through sexual contact
- sti often diagnosed younger in women
- higher rates in indigenous community
- prevention - condom/dental dam/ cling film
- Pap does not test for STIs
HIV/AIDS
- all pregnant women are tested for HIV during their pregnancy and if they are found to be HIV positive they are treated with a cocktail of HIV medications
- present in breastmilk
- alcohol and hydrogen peroxide don’t kill HIV, bleach does, virus killing spermicide also
Lymphogranuloma Venereum (LGV)
While the bacteria which cause LGV and Chlamydia are from the same group, the infections caused by LGV bacteria are more invasive. LGV is transmitted through unprotected oral, vaginal, and anal sex (including unprotected fist insertion and sharing of dildos). The risk of infection can be reduced by using condoms or other barrier methods for oral, vaginal, and anal sex.
antibiotic treatment
Mode of disease transmission (5)
Contact Food or water Airborne Vector Perinatal
Contact Disease Transmission
Direct (e.g., skin or sexual contact) or indirect (e.g., infected blood or body fluid)
Food or Water Disease Transmission
Eating or coming in contact with contaminated food, water, or products passed through contaminated food or water.
Airborne Disease Transmission
tiny droplets inhaled - coughing, laughing, talking
Vector Disease Transmission
By secretions, biting, egg-laying, as done by mosquitoes, ticks, snails, avians, etc.
Perinatal Disease Transmission
In utero or as a baby passes through the birth canal.
Cardiovascular disease (CVD)
Includes both heart disease and stroke, is a leading cause of death in Canada. Although more than a third of all Canadians die from CVD
Cardiovascular disease (CVD) risk factors
-age
-lifestyle
high blood pressure
cholesterol
overweight/obesity
tobacco use
lack of physical activity
diabetes.
Hypertension, or High Blood Pressure (CVD)
Systolic (higher) / Diastolic (lower)
high +140/+90
many don’t realize they have it
major contributing factor to CD
Tobacco Use (CVD)
- estimated to cause 10% of CVD
- risk highest in women/young men
- risk reduces after 2 years/ gone after 15
Raised Blood Glucose (Diabetes) (CVD)
Diabetes is defined as having a fasting plasma glucose value of 7.0 mmol/l (126 mg/dl) or higher
- CV events 2/3x higher in people with diabetes
- disproportionately effects women
Physical Inactivity
Insufficient physical activity is the fourth leading risk factor for mortality
-People who are insufficiently physically active have a 20 to 30% increased risk of all-cause mortality compared to those who engage in at least 30 minutes of moderate intensity physical activity most days of the week
-
DAILY
Disability adjusted life year
insufficient activity major cause
unhealthy diet major cause
Unhealthy Diet
High dietary intakes of saturated fat, trans-fats and salt, and low intake of fruits, vegetables and fish are linked to cardiovascular risk.
Blood Cholesterol/Lipids
needed to make hormones
LDL
low-density lipoproteins
“bad” cholesterol. A high LDL level leads to a buildup of cholesterol in the arteries (blood vessels that carry blood from the heart to your body)
The higher the level of LDL cholesterol in the blood, the GREATER the chance is of getting heart disease.
HDL
high-density lipoproteins
“good” cholesterol because it carries cholesterol from other parts of the body back to the liver. The liver removes the cholesterol from your body.
The higher the level of HDL cholesterol in your blood, the LOWER your chance is of getting heart disease.
Overweight and Obesity
lots of global DALYs are caused by overweight or obesity
dyslipidaemia
abnormal amount of lipids in the blood
Stroke
a sudden loss of brain function that occurs when the blood flow supplying oxygen to a part of the brain is interrupted
Ischemic stroke
lack of blood flow to the brain due to a blood clot
Intracerebral hemorrhage:
bleeding within the brain
Atraumatic subarachnoid hemorrhage
rupture of an aneurysm at the base of the brain that causes bleeding into the lining of the brain.
Uncontrollable Risks - Stroke and CD
While the text mentions heredity, genetics is only part of the story because other, non-genetic risk factors also tend to run in families. For instance, members of the same family may eat the same high-fat foods, smoke cigarettes, etc.
Tools to diagnose CVD
ECG - heart electroactivity monitered during a stress test
Cardiac Catheterization - dye injected and x ray taken to view blockages