2023-10-28T23:20:38+03:00[Europe/Moscow] en true <p>&lt;4.4 mg/dL</p>, <p>vitamin D deficiency, hypoalbuminemia, post-operative hypoparathyroidism, magnesium deficiency, hungry-bone syndrome</p>, <p>hypoparathyroidism, hypomagnesemia </p>, <p>GI disease</p>, <p>impaired PTH signaling; target organ resistance to PTH</p>, <p>EDTA, sodium phosphate, foscarnet</p>, <p> inhibits the activation of calcidiol into calcitriol in the kidneys</p>, <p>a lack of calcitriol; impairing absorption of calcium </p>, <p>tetany, paresthesia, muscle cramps, laryngeal spasms, depression, confusion</p>, <p>Chvostek sign</p>, <p>Troussea's sign</p>, <p>dehydrocholesterol synthesized in skin by sunlight; cholecalciferol, then hydroxylated in the liver; calcidiol; then hydroxylated in kidney; calcitriol</p>, <p>false; calcium levels are still normal </p>, <p>measured Ca + 0.8(4-albumin)</p>, <p>60mg/min</p>, <p>b</p>, <p>cardiac dysfunction; ventricular fibrillation </p>, <p>central venous access </p>, <p>&lt; 20 ng/ml</p> flashcards
Hypocalcemia

Hypocalcemia

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  • <4.4 mg/dL

    What is the ionized calcium concentration that indicates hypocalcemia?

  • vitamin D deficiency, hypoalbuminemia, post-operative hypoparathyroidism, magnesium deficiency, hungry-bone syndrome

    What are the causes of hypocalcemia? (5)

  • hypoparathyroidism, hypomagnesemia

    Which conditions would NOT result in elevated PTH levels? (2)

  • GI disease

    The most common cause of vitamin D deficiency in the Western world is ______.

  • impaired PTH signaling; target organ resistance to PTH

    What can occur when a patient has hypomagnesemia? (2)

  • EDTA, sodium phosphate, foscarnet

    What are calcium chelators that can cause hypocalcemia? (3)

  • inhibits the activation of calcidiol into calcitriol in the kidneys

    What is FGF-23 role in calcium homeostasis?

  • a lack of calcitriol; impairing absorption of calcium

    What would too much FGF-23 cause?

  • tetany, paresthesia, muscle cramps, laryngeal spasms, depression, confusion

    What are the signs/symptoms of hypocalcemia? (6)

  • Chvostek sign

    elicited by tapping the facial nerve anterior to the ear and eliciting twitching of facial muscles

  • Troussea's sign

    elicited by inflating a blood pressure cuff above systolic blood pressure for 3 minutes and observing whether a carpal spasm is induced

  • dehydrocholesterol synthesized in skin by sunlight; cholecalciferol, then hydroxylated in the liver; calcidiol; then hydroxylated in kidney; calcitriol

    Explain the vitamin D metabolic pathway.

  • false; calcium levels are still normal

    Hypocalcemia related to hypoalbuminemia requires treatment. T/F?

  • measured Ca + 0.8(4-albumin)

    Corrected Calcium formula?

  • 60mg/min

    What is the rate for calcium infusion?

  • b

    Which is the preferred form?

    a) calcium chloride

    b) calcium gluconate

  • cardiac dysfunction; ventricular fibrillation

    What can occur if we infuse calcium too quickly?

  • central venous access

    If calcium chloride is administered, how do we do it?

  • < 20 ng/ml

    Vitamin D deficiency is defined as