Fluid Balance, BMP, and CBC (w/Diff) Flashcards
To maintain homeostasis, fluids
IN must EQUAL fluids OUT
Examples of fluid sources for the body
Beverages
Food
Metabolism of Nutrients
IV Fluids
A healthy adult client takes in about _________ mL of fluid/day.
2,500
In a healthy adult client, kidneys make about ____________ mL of urine/day.
1,500
In an elderly patient, it is appropriate to check for skin turgor where?
The glabella (middle of forehead between the eyes)
What fluid do you give to raise the B/P?
Isotonic Fluids like 0.9% NS or Lactated Ringers
Which fluids “shift” water from the extracellular space into the cells, or rehydrate the cells?
Hypotonic Fluids (0.45%)
Which fluids “shift’ water out of the cells?
Hypertonic Fluids (3%)
What are hypertonic fluids used for?
To raise the sodium and chloride concentration outside the cells
A high sodium level with normal creatinine level indicates
Dehydration
What indicates renal failure?
Abnormal BUN + abnormal creatinine
Sodium, Potassium, and eGFR may also be elevated
What is used to bring down Potassium levels?
Kayexalate. If that doesn’t work well, the provider may order regular insulin IV with 50% dextrose.
A low WBC (leukopenia) may be a sign of
immunosuppression
What are segs?
mature neutrophils
What are bands?
immature neutrophils
What is ANC
Absolute Neutrophil Count
WBC x %of neutrophils
How do the stem cells in the bone marrow know what kind of blood cell the body needs?
Decreased oxygenation leads to erythropoietin released from the kidneys - RBC
Injury to capillary walls - platelets
Infection/foreign bodies stimulate WBC
Neutrophils in action
they are attracted to areas of the body that are infected/inflamed; destroy invading cells by phagocytosis
Eosinophils in action
increased numbers are often seen with parasitic infection; often migrate to GI, respiratory and urinary tracts
may also be seen increased with allergic problems such as asthma
Basophils in action
contain heparin and histamine which promotes inflammation; responsible for allergic reactions
Which WBC’s remain as “memory cells”?
B-lymphocytes