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Free audio crash courses for certification, licensing and admissions exams. Every episode is one lesson you can finish on a commute, drawn from the free practice questions, flashcards and study guides at exampreprise.com. New episodes every day.
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NCLEX-RN Complete Prep Course — Lesson 83: Integumentary and Musculoskeletal Assessment: Pressure Injury Staging, Wound Assessment, Braden Scale, and Neurovascular Checks
Sarah Mitchell teaches pressure injury staging from stage 1 through stage 4, unstageable, and deep tissue injury, the six Braden categories with the 18 or less cutoff, and the prevention bundle. She covers wound measurement, drainage types,
MATSEC AM Pure Mathematics Complete Prep Course — Lesson 82: Vector notation and algebra
Sarah Mitchell shows that a vector in i, j, k form and the same vector in column form are one object, then drills component-by-component addition and subtraction, scalar multiplication, the triangle rule, the arrow from the tip of a to the
NCLEX-RN Complete Prep Course — Lesson 82: Gastrointestinal and Genitourinary Assessment: Bowel Sounds, Abdominal Findings, and Urinary Assessment
Sarah Mitchell walks through the abdominal assessment sequence, inspect, auscultate, percuss, palpate, what bowel sound counts mean, and what named signs like Murphy's, McBurney's, Cullen's, and Grey Turner point to, along with stool and em
MATSEC AM Pure Mathematics Complete Prep Course — Lesson 81: Mean value of a function
Sarah Mitchell teaches the mean value of a function as one over b minus a times the definite integral of f from a to b, the height of the equal-area rectangle. She fixes the order of operations, warns that interval width is upper minus lowe
NCLEX-RN Complete Prep Course — Lesson 81: Respiratory Assessment: Breath Sounds, Breathing Patterns, Oxygenation, and Sputum
Sarah Mitchell teaches respiratory assessment from the doorway inward, rate, effort, retractions, tripod position, barrel chest, and the Cheyne-Stokes, Kussmaul, and Biot patterns. She distinguishes fine and coarse crackles, wheezes, rhonch
MATSEC AM Pure Mathematics Complete Prep Course — Lesson 80: Area under and between curves
Sarah sets up definite integrals for area, working the area under y equals the square root of x from zero to four to sixteen over three. She covers why regions below the x-axis give negative integrals, how to split at the roots and add abso
NCLEX-RN Complete Prep Course — Lesson 80: Cardiovascular and Peripheral Vascular Assessment: Heart Sounds, Pulses, Edema, and Jugular Venous Distension
Sarah Mitchell maps the five auscultation landmarks, explains S1 and S2, and teaches the S3 Kentucky gallop of fluid overload versus the S4 Tennessee gallop of a stiff ventricle. She covers pulse grading and Doppler, edema grading one plus
MATSEC AM Pure Mathematics Complete Prep Course — Lesson 79: Definite integrals
Sarah Mitchell teaches the mechanics of evaluating definite integrals for MATSEC Advanced Matriculation Pure Mathematics. She covers bracket notation and upper minus lower, why no constant of integration is needed, changing limits under a s
NCLEX-RN Complete Prep Course — Lesson 79: Neurological Assessment: Glasgow Coma Scale, Pupils, Cranial Nerves, Posturing, and Neuro Checks
Sarah Mitchell breaks down the Glasgow Coma Scale, eye four, verbal five, motor six, with worked scores and the eight or less intubation rule. She covers the level of consciousness ladder, pupil findings including the unilateral dilated pup
MATSEC AM Pure Mathematics Complete Prep Course — Lesson 78: Integration by partial fractions
Lesson 78 shows how to integrate algebraic fractions by decomposing them first. Sarah works through one over x squared minus one, splitting it into a half over x minus one minus a half over x plus one, then integrating to logarithms. She co
NCLEX-RN Complete Prep Course — Lesson 78: Head-to-Toe Physical Assessment: Techniques, Sequence, and Documentation
Sarah Mitchell walks through the head-to-toe assessment in exam order, inspection, palpation, percussion, and auscultation, and the abdominal exception where the nurse listens before touching. She covers skin color and turgor, capillary ref
MATSEC AM Pure Mathematics Complete Prep Course — Lesson 77: Integration by parts
Sarah works through integration by parts, the reverse of the product rule, from the formula the integral of u d v equals u v minus the integral of v d u. She covers choosing u by the LIATE priority order, standard results for x e to the x,
NCLEX-RN Complete Prep Course — Lesson 77: ECG Basics: Reading a Strip, Lethal Rhythms, and the Nursing Response
Sarah Mitchell teaches a five question method for reading any ECG strip, the normal PR and QRS intervals, and the six second rate count. She walks through sinus rhythms, atrial fibrillation and flutter, SVT with vagal maneuvers and adenosin
MATSEC AM Pure Mathematics Complete Prep Course — Lesson 76: Integration by substitution and by sight
Lesson seventy-six shows how to pick a substitution, usually the awkward bracket, root or exponent, then convert d x into d u and clear every x before integrating. It drills the two by-sight patterns, f dash over f giving a natural logarith
NCLEX-RN Complete Prep Course — Lesson 76: Arterial Blood Gas Interpretation Made Simple: ROME, Compensation, and Nursing Actions
Sarah Mitchell gives a four-step blood gas method built on ROME, respiratory opposite, metabolic equal. She covers the normal ranges, the causes, signs, and nursing actions for respiratory and metabolic acidosis and alkalosis, how to read u
MATSEC AM Pure Mathematics Complete Prep Course — Lesson 75: Integrating trigonometric functions
Sarah teaches the three memorised trigonometric integrals, the sign reversal that costs the most marks, and the rule of dividing by the coefficient of x for a linear argument. She shows why sine squared and cosine squared must be rewritten
NCLEX-RN Complete Prep Course — Lesson 75: Laboratory Values Every NCLEX Candidate Must Know: CBC, Chemistry, Coagulation, Cardiac Markers, and Renal Function
Sarah Mitchell speaks the lab table so it sticks. She walks through the complete blood count with the absolute neutrophil count, the chemistry panel led by potassium, magnesium, and calcium, BUN, creatinine, and GFR, liver enzymes, albumin,
MATSEC AM Pure Mathematics Complete Prep Course — Lesson 74: Integrating powers, 1/x and exponentials
Sarah works through the standard integrals for Paper One. She covers the power rule, add one to the index and divide by the new index, the excluded case n equals minus one giving the natural log of the modulus of x, and exponentials, where
NCLEX-RN Complete Prep Course — Lesson 74: Vital Signs: Normal Ranges by Age, Orthostatic Changes, and When to Act
Sarah Mitchell lays out the adult vital sign ranges and the pediatric pattern of faster pulse, faster breathing, and lower pressure in younger children. She covers blood pressure cuff and positioning errors, Korotkoff sounds and the auscult
MATSEC AM Pure Mathematics Complete Prep Course — Lesson 73: Integration as the inverse of differentiation and as a limit of a sum
Sarah Mitchell defines integration two ways and connects them. An indefinite integral is any function whose derivative is the integrand, so it carries an arbitrary constant and represents a family of vertically shifted curves. The definite
NCLEX-RN Complete Prep Course — Lesson 73: Electrolyte Replacement, Emergency Drugs, and High-Risk Infusions: Potassium, Magnesium, Calcium, Insulin Drips, and Vasopressors
Sarah Mitchell teaches the drugs where a technique error kills. She covers potassium chloride rules (never IV push, 10 milliequivalents per hour peripherally, urine output first), magnesium sulfate monitoring with calcium gluconate as the a
MATSEC AM Pure Mathematics Complete Prep Course — Lesson 72: Rates of change
Sarah links related rates through the chain rule, showing how a known time rate converts into an unknown one by multiplying by the connecting derivative. She drills the setup ritual, the minus sign on leaking and shrinking quantities, the s
NCLEX-RN Complete Prep Course — Lesson 72: Neurologic and Gastrointestinal Medications: Anticonvulsants, Parkinson's Drugs, Myasthenia Drugs, Acid Suppressors, Antiemetics, and Laxatives
Sarah Mitchell covers two high-yield drug groups in one lesson. She works through phenytoin's 10 to 20 range and saline-only slow IV rule, the toxicities of carbamazepine, valproate, and lamotrigine, levodopa-carbidopa timing around protein
MATSEC AM Pure Mathematics Complete Prep Course — Lesson 71: Optimisation in practical problems
Sarah Mitchell teaches the six-step optimisation method for MATSEC Paper One differentiation questions, from naming variables to justifying the turning point. She works the forty-metre fencing problem against a wall, reaching ten by twenty
NCLEX-RN Complete Prep Course — Lesson 71: Psychotropic Medications: Antidepressants, Lithium, Antipsychotics, Anxiolytics, and Their Emergencies
Sarah Mitchell pairs every psychotropic class with the emergency it can cause: serotonin syndrome and discontinuation syndrome with SSRIs, tyramine crisis with MAOIs, cardiotoxic overdose with tricyclics, the lithium toxicity ladder from co
MATSEC AM Pure Mathematics Complete Prep Course — Lesson 70: Stationary points and curve sketching
Sarah Mitchell shows how to locate stationary points by setting the first derivative to zero and substituting back for the y coordinate, then classify them with the second derivative and, when that returns zero, with the sign test. She cove
NCLEX-RN Complete Prep Course — Lesson 70: Antibiotics, Antivirals, and Antifungals: Classes, Peak and Trough Levels, Superinfection, and Teaching
Sarah Mitchell walks through the anti-infective families by their signature warnings: penicillin and cephalosporin cross-sensitivity, culture before the first dose, aminoglycoside and vancomycin kidney and ear toxicity with peak and trough
MATSEC AM Pure Mathematics Complete Prep Course — Lesson 69: Tangents and normals
Sarah Mitchell teaches how to find tangent and normal equations at a point on a curve for MATSEC Advanced Matriculation Pure Mathematics. She covers differentiating first then substituting, the minus one over m rule for normals, the point-g
NCLEX-RN Complete Prep Course — Lesson 69: Pain Medications: Opioids, NSAIDs, Acetaminophen, Naloxone, PCA Pumps, and Adjuvants
Sarah Mitchell covers safe analgesia: assessing respiratory rate and sedation before every opioid dose, bowel regimens from day one, fentanyl patch and codeine rules, and naloxone's short duration. She explains PCA pumps and why only the pa
MATSEC AM Pure Mathematics Complete Prep Course — Lesson 68: Logarithmic differentiation
This lesson covers logarithmic differentiation, an edge topic on the MATSEC Advanced Matriculation Pure Mathematics paper. Sarah shows the four-step method, take natural logs, simplify with the log laws, differentiate implicitly, then multi
