Exam 7 (Renal System, Immunity, Pain, Derm, Reproductive System) Flashcards
How is the bladder innervated?
· PNS and SNS
· Afferent SNS Nerves communicate that bladder is full
How is urine excreted?
· Involuntary Control via Bladder Neck Sphincter that closes during bladder filling
· Voluntary control via Urethral sphincter that releases urine from the bladder
What happens to renal system as we age?
· Decreased ability to filter blood due to
- decreased size/density
- narrowing of arteries
- increased fluid (which may impact sodium)
- decreased bladder capacity resulting in more frequent urination
- shift to nightime urine production
What happens to prostate as we age?
· Hypertrophy
Renin
· Enzyme that helps maintain sodium and potassium
· Converts Angiotension I into Angiotensin II
Albumin
· Protein that helps balance fluid in blood vessels and tissues
What is used to determine stage of chronic kidney failure?
Glomerular Filtration Rate (GFR): rate at which blood is filtered per minute
How can NSAIDS impact kidney function?
· May cause intrarenal/intrinsic kidney damage
What are the 3 most common causes of CKD/ESRD?
1) Diabetes
2) Hypertension
3) Glomerulonephritis
Uremia
· Build up of toxins in blood
· Presents during CKD/ESRD
Significance of Stages of Renal Failure
· 5 stages
· Stage 3: proper management can stop progression to later stages
· Stage 5: ESRD
Polycystic Kidney Disease (PKD) is a hereditary disorder that can lead to what?
ESRD
What is the most common bacterial infection acquired in hospitals and community?
UTIs
What sign/symptom is important to monitor for with urinary incontinence?
· Cervical spine pain (bc it could be cervical myopathy or cervical stenosis)
Steps to create an Action Plan
1) Define your goal
2) Reasons you want to achieve that goal
3) State the action
4) Define strategies
5) Define resources
6) Schedule a time to re-do action plan in 4 weeks
How does the body recognize a pathogen from self?
Normal cells contain cell markers but pathogens lack cell markers thus initiating an immune response
What WBC’s are NOT part of innate immunity?
T and B cells
What WBC is mostly found in pus?
Neutrophils
Why do macrophages live long but neutrophils die quickly?
Bc macrophages are APCs which help initiate the adaptive immune response while neutrophils are NOT APCs and are responsible for containing an infection
What happens when invaders get pasts the 1st line of defense?
Innate Immune System including Neutrophils and Macrophages go to work
An abnormal or low count of Natural Killer Cells (Lymphocytes) may result in?
An increased liklihood or herpes outbreak or infection
Direct Effect of Antibodies (Humoral Acquired Immunity, produced by B-cells)
1) Neutralize toxins/lysis
2) Agglutination of toxins
3) Precipitation (pulls out of solution to make more accessible for other cells)
4) Make more accessible to phagocytes or NK cells (dont actually do the killing, just exposing them)
What happens if you lose Suppressor or Helper T cells?
· Autoimmune response where body attacks itself bc Helper T Cells stimulate Suppressor T Cells which control down-regulation of immune system
(ex: HIV is the destruction of Helper- T cells)
What happens to T-cells as we increase age?
An increase in age results in a decrease in size of Thymus (where T-cells are produced) and thus a decrease in T-Cells
Summary of Immune Response
1) Pathogen invades
2) Innate Immunity (1st line of defense- skin,etc., 2nd line- neutrophils and macrophages)
3) Adaptive Immunity (B cells- antibodies, T-cells- helper, killer, supressor)
4) Complement System (indirectly activated by antibodies produced by B-cells)
How do antibiotics work?
· Stop bacteria from multiplying or kill them
· Interfere with bacteria ability to repair itself
· Weaken bacteria cell wall
“Neck Rule” of exercise with a mild illness
If symptoms above the neck don’t get worse in first 10 mins of exercise then its okay to continue with mild exercise for 30-45 mins
Guideline for returning to exercise with mild illness
· Wait at least 1 day after fever to start exercise again
· Same # of days off to ramp exercise back up
How are autoimmune disorders usually treated?
Using immunosuppresants and corticosteroids
Syndrome vs Disease
· Syndrome is a collection of signs and symptoms with no known actual cause (ex: CFIDS)
· No one test can diagnose a syndrome
Unique feature of Autoimmune
· Causes are unknown but probably a genetic and environmental link
Autoimmune Syndromes and a distinction between them
1) CFIDS
· More fatigue
· Symptoms for 6 months or more
2) Fibromyalgia
· More pain
· Symptoms for 3 months or more
3 Possible Outcomes of Infection
1) Pathogen is stopped by 1st line defense (ex. skin)
2)Subclinical Infection: pathogen enters body and causes a rise in antibodies and immune response but NO symptoms appear
3) Clinically Apparent Infection/Infectious Disease: obvious injury and accompanied by 1 or more symptoms
2 Types of Infectious Disease (Colonization vs Carrier)
1) Colonization: organisms is present in host but NOT causing symptoms (ex: MRSA)
2) Carriers: can transmit disease but no symptoms
- Temporary
- Chronic
Latent Infection
· Disease present but not actively reproducing and therefor not causing symptoms (ex: herpes, shingles)
Onset of symptoms is what part of the incubation period?
The end of incubation period
How do we classify pathogens?
· Classified by pathogenicity (ability to cause disease) which is measured using virulence (severity, case-fatality rate)
· ex: Ebola has a high virulence and high pathogenicity