PANRE - Nephrology & Urology

  1. ___________ is required for the synthesis of PTH and is often associated with hypocalemia.
  2. How does low levels of calcium cause tetany, paraesthesias, or muscle spasms?
    Ca2+ blocks sodium channels, preventing influx of Na+ ions from entering nerve cell. Low levels of Ca2+ make it easier for Na ions to enter, thus enhancing depolarization potential (lowered threshold).
  3. _______ sign involves tapping on an area between anterior to the earlobe and inferior to the zygomatic arch, eliciting muscle spasms on the ipsilateral side of the face.
    Chvostek's (tapping the facial nerve)
  4. What is Trousseau's sign?
    Carpal spasms when a BP cuff is inflated.

    Associated with lowered action potential threshold due to hypomagnesemia & hypocalcemia.
  5. What two other electrolyte abnormalities are associated with hypomagnesemia?
    Hypocalcemia and hypokalemia
  6. What common symptoms are associated with hypercalcemia?
    Decreased contractions; ileus and constipation (diminished peristaltic contractions)
  7. Hypercalcemia is associated with ________ contractions?

    C. decreased

    - associated with ileus and constipation
Card Set
PANRE - Nephrology & Urology
Nephrology & Urology review.