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Toco is 100 in 30 min
Reading File
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analyse_media
Here is a full CTG interpretation for this patient (Thabasum, 27 years, NST strip from MJICUER Hospital):
CTG / NST Interpretation - 30 Minute Strip
Patient Details
- Name: Thabasum | Age: 27 | Speed: 3 cm/min
- FHR2 off: 20 bpm | Total duration: ~30 minutes (pages 1/2 and 2/2)
Systematic Analysis
| Parameter | Finding | Interpretation |
|---|---|---|
| Baseline FHR | ~145-155 bpm | Normal (110-160 bpm) |
| Variability | Moderate (6-25 bpm fluctuations) | Reassuring - intact fetal CNS |
| Accelerations | Absent (marked on report checklist) | See note below |
| Decelerations | Absent | Reassuring |
| Uterine activity (Toco) | Flat - ~0-10 mmHg throughout 30 min | No contractions recorded |
Your Observation: "Toco is 100 in 30 min"
Looking at the tocometry tracing across both pages, the Toco channel appears flat and near baseline for the entire 30-minute recording. A reading of 100 would suggest either:
- Artifact / baseline drift - the tocometer was not properly zeroed or was pressing against the maternal abdomen with excessive tension, giving a falsely elevated reading without true contractions
- Strong uterine tone - if genuinely 100 mmHg, this would represent hypertonic uterus or an ongoing contraction, which would be clinically significant
However, the tracing morphology shows no contraction waveforms (the toco should show waves/humps for contractions). The flat line at 100 most likely indicates the external toco was applied too tightly or not zeroed before the trace started.
Action: Reapply/re-zero the tocometer and re-run if baseline Toco appears incorrectly elevated, or manually palpate the uterus to assess tone.
Overall CTG Classification
Category I (Normal / Reactive NST)
- Normal baseline rate
- Moderate variability (most reassuring feature)
- No decelerations
- No pathological uterine activity
Regarding Absent Accelerations
The printed checklist marks accelerations as absent. This is noted but not immediately alarming - absent accelerations can reflect:
- Fetal sleep cycle (20-40 min cycles are normal)
- Gestational age (before 32 weeks, criteria differ: 10 bpm x 10 sec)
If accelerations remain absent after a longer trace or after vibroacoustic stimulation (VAS), further evaluation (BPP) may be warranted.
Summary: The strip is largely reassuring with a normal baseline and moderate variability. The flat toco at an apparent 100 mmHg reading without visible contraction waveforms most likely represents tocometer calibration/application error rather than true sustained uterine hypertonia. Manual uterine assessment and toco re-zeroing is recommended to confirm.
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