FIR 221 Flashcards
Function of the liver
Filters intake, stores and releases glycogen, excretes bilirubin; hormones; cholesterol; drugs, clotting factors, metabolizes fats proteins and carbs
Ascites
Accumulation of fluid in peritoneal cavity, causing abdominal swelling
Dysplasia
Presence of abnormal cells within a tissue
Hyperplasia
Organ or tissue growth at an increased rate
Osmoreceptors
Receptors that detect changes in osmotic pressure
Osmotic pressure
The pressure created by water moving across a membrane due to osmosis
Metaplasia
Having a type of cell in a place where that type is not typically found
Chemoreceptors
Receptors that detect chemical balance changes in the body
Osmosis
Movement of solvent (water) across a semipermeable membrane from high to low concentration
Diffusion
Movement of molecules from high to low concentration
Renal buffering system
Buffering system in the kidneys to maintain acid-base balance by reabsorbing bicarbonate from urine back to blood and secreting hydrogen into urine.
Carbonic acid-bicarbonate buffering system
Fastest buffering system in the body that manages acid/base imbalances that are created by normal anatomy and physiology.
Cortisol
Immunosuppressant, reduces inflammation, and promotes gluconeogenesis. Created in adrenal gland.
Isotonic dehydration
Low sodium, low water
Hypernatremic dehydration
High sodium, low water
Hyponatremic dehydration
Low sodium, high water
3rd Degree AV Block
Inconsistent/varying PR intervals
1st Degree AV Block
Long PR interval (>0.2)
Renin
Enzyme secreted by kidney when hypovolemic, turns Angiotensin I to Angiotensin II, which vasoconstricts and secretes ADH
Fluid compartments
Intracellular and extracellular
Midazolam Dose
Cardioversion- 5mg IVP/IN. Repeat x1 PRN.
Pacing/anxiety/cont. sedation- 2mg slow IVP q. 2 mins or 0.2mg/kg IM/IN max 10mg
Seizures- 2mg IVP/IO q. 30-60s or 0.2mg/kg IM/IN max 10mg
All routes may repeat up to 20mg prn
Peds- 0.1mg/kg IVP or 0.2mg/kg IM/IN. Max single dose 2mg q. 2 min PRN max 10mg.
Fentanyl Dose
1mcg/kg max 100mcg + repeat 0.5mcg/kg max 50mcg
Elderly (>65) 0.5mcg/kg max 50mcg
D10 Dose
bG 60-70: 12.5Gm
<60: 25Gm
Peds: 0.5Gm/kg max 25Gm
pH Level
7.35 to 7.45
Higher than 7.45 is alkalotic
Lower than 7.35 is acidotic
Bicarbonate
Byproduct of body’s metabolism. An alkali.
Active transport
Moving molecules across cell membrane using cellular energy (ATP).
Types of mediated transport
Active transport, facilitated diffusion
Facilitated diffusion
Moving molecules across a cell membrane using the help of a transport molecule.
Ketamine Dose
DAI or excited delirium- 2mg/kg IVP over 1 min or 4mg/kg IN/IM. Excited delirium can get 1/2 additional IVP dose after 10 minutes.
Pain- 0.3mg/kg IVP over 1 min or IN/IM. May repeat after 20 minutes.
Etomidate Dose
0.5mg/kg IVP/IO
T cells
Attack antigens
B cells
Create antibodies
Antigen
Substance that reacts with components of immune system
Aldosterone
Hormone that stimulates the absorption of sodium by nephrons to regulate water/salt balance
Antidiuretic Hormone (ADH)
Peptide hormone secreted by pituitary gland, preventing urine production (retaining fluids)
Hering-Brever Reflex
Reflex triggered to prevent over-inflation of the lung
Alpha-1
Vasoconstriction
Alpha-2
Inhibits norepinephrine, acetylcholine, and insulin release
Beta-1
Heart contractibility
Beta-2
Vasodilation
Catecholamines
Help the body respond to stress or fright
Epinephrine, norepinephrine, dopamine
3rd Space Loss
Fluid draining into any space that it’s not supposed to
Components of extracellular fluid compartments
interstitial and intravascular
Beta-1 selective blockers
Subclass of beta blockers that are commonly used to treat hypertension.
Layers of the meninges
Skin, periosteum, cranium, dura mater, arachnoid mater, pia mater
Trigeminal nerve
Cranial nerve controlling facial sensation, chewing
Temporal lobe
Controls heating and associating memory with senses
Frontal lobe
Responsible for emotion, behavior, and personality
Epiphyseal plate
The area of cartilage in a long both between the epiphysis and metaphysics where bone growth occurs
Diaphysis
Central aspect of a long bone
Metaphysis
Region where epiphysis joins diaphysis in a long bone
Epiphysis
End part of the long bone
Parietal lobe
Responsible for sensory perception
Public symphysis
Joint that sits centered between pubic bones
BeFAST
Balance, eyes, facial, arms, speech, time
Babinski Reflex
A reflex where the toes curl in when the bottom of the foot is stimulated. Negative finding is normal in pediatrics under 2 years.
Vestibulcochlear nerve
Cranial nerve responsible for hearing and balance. Also called the auditory nerve.
Trochlear nerve
Cranial nerve responsible for downward and medial eye movement
Facial nerve
Cranial nerve responsible for facial muscle movement and eyelid closing
Optic nerve
Cranial nerve responsible for visual acuity
Olfactory nerve
Cranial nerve responsible for smell
Divisions of the brain stem
Pons, midbrain, medulla
Coronary sinus
Small veins that form the sinus. Located on the posterior surface between L ventricle and L atrium. Drains most of the deoxygenated blood leave the myocardium into the right atrium.
Layers of the heart wall
Epicardium, myocardium, endocardium
Signs of peritonitis
Tenderness, rigidity, distention
Parasympathetic nervous system
Controls the maintenance of homeostasis, slows/calms
Sympathetic nervous system
“Fight or flight”
Response to threat
Occipital lobe
Visual perception
S/s ICP
Cushing’s triad: hypertension, bradycardia, bradypnea
Headache, seizures, pupillary changes
Coccyx
Small triangular bone located at the base of your spine. Your tailbone
Ischium
Curved bone forming the base of each half of your pelvis
Integumentary system
Epidermis, dermis, subcutaneous and associated glands, hair, nails
Protects internal from external environment
Endocrine system
Regulation of hormones
Path of blood through the heart
Body, R atrium, tricuspid valve, R ventricles, lungs via pulmonary artery, L atrium via pulmonary veins, bicuspid valve, L ventricles, to the body via the aorta
Carbon dioxide necrosis
Drowsiness caused by hypercarbia
Nucleus
Large organelle that holds genetic material of cell and dictates protein synthesis
Mitochondria
Synthesizes ATP, “power house”
Nucleoli
Plays an essential role in the formation of ribosomes
Ribosomes
Synthesize proteins, “power factories”