Read enough to explain the mechanism and use it in the question you are preparing for. Do not read until every link has been opened. Deranged Physiology can offer valuable depth, but its organisation around intensive-care examinations means that an FRCA or FFICM candidate must supply a separate boundary around the reading.
As checked on 19 September 2026, Deranged Physiology presents extensive CICM First Part and Second Part revision material, alongside related questions and discussions. That makes it a substantial learning resource, not an officially mapped FRCA course. It also does not establish that iatroX offers CICM preparation.
This article is published by iatroX and includes its written-question practice as one way to test the selected learning. The aim is to use a detailed resource well, not to replace it with a shorter explanation merely because it is shorter.
Put the examination task above the topic title
"Respiratory physiology" is too large a reading instruction. A more useful target is, "Explain why the same pressure change need not produce the same volume change under different conditions." The second wording tells you what your eventual answer must do.
For Primary FRCA, Final FRCA and FFICM, check the current syllabus and component you are preparing for. Do not use the label "anaesthesia exams" as a substitute for that check. A foundational mechanism, an applied written decision and an oral defence can concern the same topic while requiring different outputs.
Before reading, write the expected output at the top of a page. It might be a labelled relationship, a short causal explanation or a comparison between two plausible clinical options. Then state what you are not trying to produce today. Excluding a historical detour or an advanced controversy from one session is not a judgement that it lacks value.
An original mechanism workshop
Consider a fictional teaching exercise in which a model lung is tested under two specified conditions. The exercise supplies a pressure-volume relationship and tells you that the slope differs. No patient, ventilator setting or treatment prescription is involved.
First, describe what is shown without using the word you think the examiner wants. Which quantity is changing? Which is held constant? Does the statement concern a static relationship, a dynamic observation or something else? If that distinction is unclear, more memorised labels will not repair it.
Next, explain the relationship in a sentence beginning, "For the same change in..." You should be able to complete the sentence from the axes and the stated conditions. Finally, ask what the diagram does not tell you. A relationship measured in a simplified model does not provide every fact needed for a clinical decision.
This workshop is a proposed learning method, not a reproduced Deranged Physiology question. Use the appropriate chapter to check your explanation, then return to the original task. The resource should resolve a specific uncertainty rather than become permission to abandon the exercise and read indefinitely.
Set three stopping conditions
The first stopping condition is explanatory: can you express the mechanism in your own words without following the source sentence by sentence? A fluent paraphrase made with the page open is not the same task.
The second is discriminatory: can you explain why a nearby alternative is not the same thing? Confusing related quantities, mechanisms or time courses often matters more than forgetting an isolated definition. Write the contrast, not two unrelated descriptions.
The third is applied: can you use the idea when the presentation changes? Alter one assumption in the original exercise and state whether your conclusion should change. You do not need to invent a clinical management algorithm. You need to show that the explanation depends on the conditions rather than on the picture you memorised.
If all three are satisfied at the required level, move on. If one fails, return to the relevant subsection. This is an editorial stopping rule, not a validated threshold for examination readiness.
Keep depth without importing the wrong assessment
Detailed resources often contain useful material beyond your immediate requirement. Keep a parking list for topics worth exploring later. Write why the topic matters and when you would revisit it. That is better than either reading everything immediately or discarding anything that is not visibly examinable.
Retain the source's context. An answer written for a CICM question may assume a particular curriculum, response format or expected depth. Extracting its length as a model for a different examination is unreliable. Similarly, an unofficial answer should not be relabelled as an examining body's marking scheme.
Do not paste protected questions or entire explanations into an AI tool to have them rewritten. Describe your own uncertainty. For example: "I understand the definition, but I cannot explain why the interpretation changes when the assumptions change." That is a learning question rather than a request to reproduce the resource.
Use the bank to test the boundary you chose
iatroX's September 2026 catalogue includes Primary FRCA, Final FRCA and FFICM written practice. Its Tutor is designed to explore reasoning after an attempted question. Choose the relevant examination pathway and use a different question to inspect whether the mechanism now helps you decide.
A wrong answer after reading does not prove the reading was wasted. It may reveal that you repaired the mechanism but still misread the task, missed a condition or failed to prioritise. Record that distinction before deciding to reread the entire chapter.
Keep Deranged Physiology when you need a detailed account or a difficult concept unpacked. Use official material to define the assessment target. Use question practice to test application at that target. Seek supervised teaching for practical and oral competencies that written work cannot establish. These resources form a division of labour, not a ranking by page count.
Frequently asked questions
Is Deranged Physiology an official FRCA revision course?
The public resource is organised substantially around CICM preparation. FRCA and FFICM candidates should check overlap against their own current examination requirements.
How do I know when to stop reading a detailed chapter?
Set a specific output and test whether you can explain, distinguish and apply the concept at the required level. Return to the unresolved subsection rather than automatically reading every linked page.
Does iatroX provide CICM or a dedicated FFICM practical simulator?
Those products are not established by the catalogue used for this article. The relevant iatroX connection here is FRCA or FFICM written learning and Tutor-supported clarification.