Hypercalcaemia

(From Pulse on-line learning module)

  • Mild: <2.88
  • Moderate: 2.88 – 3.4
  • Severe: >3.4

If the level is mild or moderate (i.e. 3.4 or less) and the patient is asymptomatic, repeat within the next week. Fasting bloods may be more accurate (although, in practice, that could make it difficult to get a PTH level at the same time). Taking blood without a tourniquet can help but is tricky.

Patients with severe hypercalcaemia, or with calcium >3 who are symptomatic, should be admitted.

The most common causes are hyperparathyroidism and hypercalcaemia of malignancy; remember that these are not mutually exclusive and that it is not out of the question for them to co-exist. Hypercalcaemia of malignancy is not always secondary to bony mets; it may be secondary to humoral secretion of parathyroid hormone-related peptide.

Advertisements

About Dr Sarah

I'm a GP with a husband and two young children.
This entry was posted in Clinical biochemistry. Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s