1. B
Rationale:
Hypoparathyroidism occurs when the glands produce too little PTH. Blood calcium levels fall, and phosphorus levels rise
("Hypoparathyroidism," 2012).
The low production of parathyroid hormone in hypoparathyroidism leads to abnormally low ionized calcium levels in your blood and bones and to an increased amount of phosphorus
("Hypoparathyroidism," 2012).

2. C
Rationale: "When [tetany] occurs in your throat, they can interfere with breathing, creating a possible emergency" (Mayo Clinic, 2012a).


3. B
Rationale: "Hypoplastic dentition, cataracts, bone deformities, and basal ganglia calcifications do not respond to the correction of hypocalcemia, but the other symptoms of hypocalcemia are reversible" (Huether & McCance, 2008).