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Vetdle Archive

Archive Case #28: Bovine Hypocalcaemia

Cattle veterinary case - Easy - March 31, 2026

Clinical Clues

  1. A high-producing dairy cow is found recumbent within 24 hours of calving.
  2. The farmer reports the cow was weak at first and then became unable to stand.
  3. On examination the cow is quiet, cold-eared, and has reduced rumen motility.
  4. The heart sounds are weak and the pulse is elevated.
  5. Blood testing confirms low serum calcium concentration.
  6. Sudden calcium demand at the onset of lactation can cause periparturient paresis in dairy cows.

Diagnosis

Bovine Hypocalcaemia

This case is most consistent with Bovine Hypocalcaemia because the freshly calved dairy cow is recumbent, weak, and has confirmed low serum calcium. The most important clues are the timing after calving, reduced muscle function, and hypocalcaemia, which strongly support milk fever.

Learning review

Review the case evidence

Use the paired clues to explain how the evidence in this cattle case supports the provided diagnosis, Bovine Hypocalcaemia, then compare your reasoning with the case explanation.

Evidence checkpoints

Clues 1-2

  1. Clue 1: A high-producing dairy cow is found recumbent within 24 hours of calving.
  2. Clue 2: The farmer reports the cow was weak at first and then became unable to stand.

Clues 3-4

  1. Clue 3: On examination the cow is quiet, cold-eared, and has reduced rumen motility.
  2. Clue 4: The heart sounds are weak and the pulse is elevated.

Clues 5-6

  1. Clue 5: Blood testing confirms low serum calcium concentration.
  2. Clue 6: Sudden calcium demand at the onset of lactation can cause periparturient paresis in dairy cows.

Self-review prompts

  1. After clues 1-2, what evidence from this cattle case shaped your initial interpretation?
  2. When you compare clues 3-4 with clues 1-2, what changed in your reasoning about Bovine Hypocalcaemia?
  3. How do clues 5-6 align with the case explanation for Bovine Hypocalcaemia?

Educational Use

Vetdle archive cases are educational veterinary games for diagnostic reasoning practice. They do not provide veterinary advice, diagnosis, treatment, or professional medical guidance.