How a Cue Becomes a Hypothesis
Eight labeled findings from one post-operative client ride a rail left to right through three upright gates marked DEVIATION, TRAJECTORY, CONSEQUENCE, dropping into bins labeled IRRELEVANT, EXPECTED FOR CONDITION, and RELEVANT CUE; the four survivors gather into two clusters, each feeding a hypothesis card.
The mechanism
A finding is not yet a cue. A finding becomes a cue when it passes three gates: deviation, from the expected value or from this client's own baseline; trajectory, meaning it is moving and you know which way; and consequence, meaning it costs something within the next hour if nobody acts. Cues that survive all three get clustered. A cluster with one physiologic explanation is a hypothesis.
Gate 1 · Deviation
A heart rate that has climbed steadily from this client's own admission baseline is a cue even while it still sits inside the published adult range, because the comparison that decides relevance is to this client, not to the textbook → BOOK 07 · P4.
Gate 2 · Trajectory
One reading is a snapshot. Three readings are a direction. Direction is the whole reason the trend item type exists, and it is why a value charted without the value before it cannot be interpreted at all.
Gate 3 · Consequence
Ask what this finding costs if it is still unaddressed when the hour is over. Findings with no one-hour cost are real, they belong in your documentation, and they are not priority cues today.
The hypothesis sentence
THE CLIENT IS MOST LIKELY EXPERIENCING <condition> BECAUSE <mechanism>, WHICH I WOULD CONFIRM OR RULE OUT WITH <next data point>.
- The client is most likely experiencing hypovolemia because volume loss lowered preload, confirmed or ruled out by hourly urine output.
- The client is most likely experiencing early sepsis because vasodilation dropped systemic resistance, confirmed or ruled out by serum lactate.
The falsify move
Name the cue that should be present if your hypothesis is right, then go look for it. If it is conspicuously missing, your hypothesis is weaker than it felt. Absent cues carry as much weight as present ones.
Watch outA value sitting inside the published range on a client whose own baseline has moved is still a cue. The range tells you about a population. The chart tells you about this person.
Margin notecompare to THIS patient, not the book.
Recognize Cues at introductory depth → BOOK 01 · P10.
TakeawayA finding becomes a cue only when it deviates, moves, or costs something within the hour, and a hypothesis is a cluster plus a mechanism plus a test.