PHARMACOLOGY FOUNDATIONS + INTEGRATED TRANSFER
YEAR 1 | PAGE 43D - PK/PD, RECEPTORS, INTERACTIONS + SCHOOL / STEP / COMLEX REVIEW
DRUG FRAME: TARGET / RECEPTOR -> SIGNAL / PHYSIOLOGIC EFFECT -> DOSE / EXPOSURE -> INDICATION -> TOXICITY / INTERACTION -> MONITORING / REVERSAL. IF THE TARGET AND EXPOSURE ARE CLEAR, MANY DRUG FACTS BECOME PREDICTABLE. K. PHARMACOLOGY REVIEW MAP
| Domain | Must retrieve without notes | Application |
|---|---|---|
| PK / exposure | Bioavailability; first pass; Vd; clearance; half-life; loading vs maintenance; first/zero-order concepts. | Predict concentration change with organ dysfunction, altered binding, induction/inhibition or dose change. |
| PD / receptors | Potency vs efficacy; partial agonist; competitive/noncompetitive antagonist; therapeutic index; receptor families. | Interpret dose-response shifts and predict organ effects from receptor signaling. |
| Autonomics | Alpha/beta/muscarinic/nicotinic location, signaling and organ response; major agonist/antagonist logic. | Predict therapeutic and adverse effects from receptor map rather than memorized drug lists. |
| Metabolism / interactions | Phase I/II concepts; CYP induction/inhibition; transporter/protein-binding effects. | Determine whether exposure rises or falls, then infer toxicity or treatment failure. |
| Safety | Adverse effects, contraindications, monitoring and reversal/antidote principles. | Connect mechanism to predictable toxicity and the safest corrective action. |
DRUG FRAME: TARGET / RECEPTOR -> SIGNAL / PHYSIOLOGIC EFFECT -> DOSE / EXPOSURE -> INDICATION -> TOXICITY / INTERACTION -> MONITORING / REVERSAL. IF THE TARGET AND EXPOSURE ARE CLEAR, MANY DRUG FACTS BECOME PREDICTABLE. K. PHARMACOLOGY REVIEW MAP — L. DEEP REVIEW RESOURCES - DIRECT & PLAYABLE
Pharmacokinetics Part 1: Absorption & Distribution - Armando Hasudungan - bioavailability, first pass, protein binding and Vd. Pharmacodynamics - Ninja Nerd - receptors, agonists/antagonists, potency, efficacy and therapeutic index. Drug Metabolism - Ninja Nerd - Phase I/II and CYP interaction logic. Drug Clearance - Ninja Nerd - clearance, half-life, first- vs zero-order elimination. Autonomic Pharmacology: Adrenergic Agonists - Ninja Nerd - alpha/beta signaling -> organ effects -> indications/toxicities.
DRUG FRAME: TARGET / RECEPTOR -> SIGNAL / PHYSIOLOGIC EFFECT -> DOSE / EXPOSURE -> INDICATION -> TOXICITY / INTERACTION -> MONITORING / REVERSAL. IF THE TARGET AND EXPOSURE ARE CLEAR, MANY DRUG FACTS BECOME PREDICTABLE. K. PHARMACOLOGY REVIEW MAP — M. TOP 10 MOST-MISSED CONCEPTS - #9 TO #10 9. Pharmacokinetics explains exposure; pharmacodynamics explains effect Deep explanation
PK asks what the body does to the drug: absorption, distribution, metabolism and elimination. PD asks what the drug does to its target and physiologic system. Clinical response depends on both.
DRUG FRAME: TARGET / RECEPTOR -> SIGNAL / PHYSIOLOGIC EFFECT -> DOSE / EXPOSURE -> INDICATION -> TOXICITY / INTERACTION -> MONITORING / REVERSAL. IF THE TARGET AND EXPOSURE ARE CLEAR, MANY DRUG FACTS BECOME PREDICTABLE. K. PHARMACOLOGY REVIEW MAP — M. TOP 10 MOST-MISSED CONCEPTS - #9 TO #10 9. Pharmacokinetics explains exposure; pharmacodynamics explains effect Deep explanation
| Resource | Description | Link |
|---|---|---|
| Why learners miss it | Dose-response, concentration and receptor concepts are often blended into one vague idea of “stronger drug.” |
DRUG FRAME: TARGET / RECEPTOR -> SIGNAL / PHYSIOLOGIC EFFECT -> DOSE / EXPOSURE -> INDICATION -> TOXICITY / INTERACTION -> MONITORING / REVERSAL. IF THE TARGET AND EXPOSURE ARE CLEAR, MANY DRUG FACTS BECOME PREDICTABLE. K. PHARMACOLOGY REVIEW MAP — M. TOP 10 MOST-MISSED CONCEPTS - #9 TO #10 9. Pharmacokinetics explains exposure; pharmacodynamics explains effect Deep explanation
| Easiest clue | Concentration problem = PK; target/response problem = PD. Separate exposure from effect before solving. |
|---|---|
| 10. Drug interactions are direction-of-change problems Deep explanation | CYP/transporter changes, protein binding and organ dysfunction alter exposure; receptor combinations alter effect. First predict whether concentration or physiologic effect rises/falls, then infer efficacy, toxicity and monitoring. |
| Why learners miss it Easiest clue | Long inducer/inhibitor lists are memorized without tracing what happens to the substrate. Actor -> substrate -> exposure direction -> consequence. Never stop at “inhibitor” or “inducer.” |
N. SCHOOL-EXAM + STEP 1 / COMLEX TRANSFER
| School emphasis | Professional-exam transfer |
|---|---|
| Mechanism maps, graphs/equations, organism classification, immune pathways, dose-response/PK calculations and local objective detail. | Integrated vignette: perturb normal physiology, localize immune/microbial/drug mechanism, interpret labs/graphs, and predict next mechanistic consequence. |
| Use closed-book drawings, mechanism tables, targeted school questions and timed mixed blocks. | Use UWorld/AMBOSS for mechanism transfer; use NBME/COMLEX-oriented readiness tools after concepts are stable. |
O. 10 HIGH-DISCRIMINATION REVIEW CASES
| # | Scenario | Reasoning target |
|---|---|---|
| 1 2 | Acute hemorrhage with tachycardia PV-loop shift after increased afterload | Primary fall in effective arterial volume -> baroreflex compensation; separate cause from response. Predict ESV/SV and loop shape from pressure-load mechanics before naming a disease. |
| 3 4 | Hypoxemia poorly corrected by oxygen Recurrent Neisseria infections | Distinguish shunt from V/Q mismatch using physiology, not buzzwords. Localize terminal complement/MAC weakness from organism pattern. |
| 5 6 | Intracellular viral antigen presentation Catalase-positive abscesses with poor oxidative burst | Endogenous antigen -> MHC I -> CD8 effector logic. Localize phagocyte killing defect before syndrome recall. |
| 7 8 | Gram-positive cocci from prosthetic device biofilm Early infection with negative antibody test | Use device + biofilm + classification to narrow organism and virulence mechanism. Choose direct organism/antigen/NAAT strategy based on what the test detects and timing. |
| 9 10 | Competitive receptor antagonist added CYP inhibitor added to a narrow-index substrate | Rightward dose-response shift with preserved maximal efficacy when surmountable. Substrate exposure rises -> toxicity risk; trace direction before naming the interaction. |
O. 10 HIGH-DISCRIMINATION REVIEW CASES — P. FOUNDATIONAL SCIENCES II MASTERY GATE
- Can predict direction-of-change and compensation across unfamiliar physiology graphs, equations and integrated cases. - Can move from immune function or infection pattern to the responsible cell/pathway/defect without relying on syndrome buzzwords. - Can classify an organism, explain virulence, select a diagnostic modality and connect antimicrobial target to resistance logic. - Can distinguish PK from PD, interpret receptor curves, and predict interaction/toxicity direction from mechanism. - Can solve new integrated questions while explaining why the strongest distractor violates the physiology, immune, microbial or pharmacologic model.
O. 10 HIGH-DISCRIMINATION REVIEW CASES — Practice / readiness links
UWorld Step 1 - primary integrated vignette-transfer layer. AMBOSS USMLE - targeted repair + reference after misses. NBME CBSSA - cumulative official-style calibration. NBOME COMLEX-USA Level 1 - DO pathway blueprint and practice resources. 2026/27 foundational-review expanded edition - verify school and official exam updates before testing