Unit 2 Lav values, Lytes, and Fluids Flashcards
Anemia
Body does not have enough
Red blood cells to carry oxygen through the body
What does Braden scale measure
The risk for pressure ulcers/skin breakdown
What is 23-19 on Braden score
Not at risk
what is 18-15 on Braden score
Mildly at risk
What is 14-13 on Braden scale
Moderate risk
What is 12-10 on Braden scale
High risk
What is the point of packing a wound
cause it to heal from bottom up
Lab tests
Urinalysis, Hematology, Coagulation, Chemistry, Blood gases
How to get a UA
Midstream or from a catheter
Types of UA
-Random (glucose, white count) 24 hour collection, Urinary C and S (what is growing and what antibiotic is needed to kill it)
When to take a Urine sample
In the morning (urine is least diluted)
24 hour Urine sampling
Start 0600-0600 collect every drop of urine to determine kidney failure
What does high Urea in blood and Low urea in Uric tell us?
It shows that they are unable to metabolise it and kidneys are not working
Low creatinine indicates
chronic kidney disease or serious kidney damage
High serum creatinine indicates
Blocked urinary tract. Kidney problems, such as kidney damage or failure, infection, or reduced blood flow. Loss of body fluid (dehydration)
Culture and sensitivity
Culture and sensitivity testing is done to help diagnose an infection. It may also help your health care provider decide which antibiotics to use in treating your infection.
what does it means to be antibiotic sensitive
This means that the antibiotic will work to fight against the bacteria
What does it mean when an antibiotic is intermediate
This means the antibiotic will work but needs an extra dosage
What does it mean if an antibiotic is resistant
the antibiotic will not work against the bacteria (should not take this specific antibiotic)
Gram staining
A Gram stain is a laboratory test that checks for bacteria at the site of a suspected infection or in certain bodily fluids.
What is blood made of?
Plasma, RBC, EBC, Platelets
What does Plasma do
55% of blood
Liquid proton of your blood
What are RBC
The red blood cell’s main function is to carry oxygen from the lungs and deliver it throughout our body.
What are WBC purpose
White blood cells are part of the body’s immune system. They help the body fight infection and other diseases. Types of white blood cells are granulocytes (neutrophils, eosinophils, and basophils), monocytes, and lymphocytes (T cells and B cells) High can show infection
Platelets
Platelets, or thrombocytes, are small, colorless cell fragments in our blood that form clots and stop or prevent bleeding
3 Functions of the blood:
Transport:
-Oxygen, nutrients, hormones, metabolic waste, CO2, Ammonia, Urea
Regulates:
-Fluid balance
-Electrolyte balance
-Body temp
Protection:
-Fight infection
-Prevent recurrent infection
-Coagulation
High WBC count may indicate
infection
Hemoglobin
Iron/has carrying capacity. This is the protein that carries oxygen to organs
Hematocrit
The percentage by volume of red cells in your blood
MCH
The weight of your red blood cells
MCV
The size of your Red blood cells (can help diagnose anemia)
MCHC
RBC saturated with hemoglobin (average concentration of hemoglobin in a group of red blood cells
RDW
Red blood cell distribution (helps diagnose anemia)
MPV
Mean platelet volume based on side
Neutrophils
They travel to the site of infection, where they destroy the microorganisms by ingesting them and releasing enzymes that kill them.
High Neutrophils
They help you fight infection. If there are too many neutrophils in your bloodstream, you may develop leukocytosis, or a high total white blood cell count. Symptoms of fever or infection
Low Neutrophil
Neutropenia is the result of your body destroying neutrophils before your bone marrow can create more. Causes of a low neutrophil count include: Infection (hepatitis, tuberculosis, sepsis, Lyme disease). Chemotherapy.
Coagulation
When to bleed, how much, but not too much… how much time it take
APTT
used to measure and evaluate all the clotting factors of the intrinsic and common pathways of the clotting cascade
APTT is effected by what medication
Heaparin
INR
tells you how long it takes for your blood to clot.
What med is INR effected by
Warfarin
4 stages on Clotting cascade
- Vascular response
- Platelet plug
- FIbrin clot
- Clot dissolution
Clot process
-injury to blood vessel
-Blood vessel around wound constrict reduce blood flow to the damage area
-Activated platelets stick to injury site
-Platelets and damaged toss release clotting factors
-Blood clotting mechanism to form fibrin which acts like mech to stop the bleeding
Normocytic
(not enough)
Caused by…
-Acute blood loss
-Chronic blood loss
-Renal disease
-Anemia of Chronic disease
-Body cannot make enough iron due to chronic demand and inflammation (Females)
Microcytic
Caused by…
Too small. Iron Deficiency, blood loss
Macrocyte
Caused by…
Too large. Megaloblastic, Vitamin B12/Folate deficiency, Alcoholism, Hypothyroidism, Error in bone marrow production, COPD, Erythropoietin administration