What symptom can result from deficient production of parathyroid hormone?

What symptom can result from deficient production of parathyroid hormone?

• A. Elevated levels of calcium in the blood
• B. Muscle cramping and twitching
• C. Frequent headaches
• D. Joint pain and swelling

Answer: (B)

Deficient production of parathyroid hormone (PTH) leads to a condition known as hypoparathyroidism. This condition is characterized by low levels of calcium in the blood, as PTH is crucial for maintaining calcium homeostasis. When PTH is deficient, the body struggles to mobilize calcium from the bones, reabsorb calcium in the kidneys, and activate vitamin D, which is essential for calcium absorption in the intestines. As a consequence of low calcium levels (hypocalcemia), individuals commonly experience symptoms such as muscle cramping and twitching, a phenomenon known as tetany. This occurs because calcium is vital for proper neuromuscular function. Low levels of calcium can lead to increased excitability of nerve and muscle cells, resulting in involuntary muscle contractions, spasms, and cramps. The other options are less relevant because elevated levels of calcium are associated with excess PTH production rather than deficiency. Frequent headaches and joint pain and swelling do not directly correlate with the physiological effects of parathyroid hormone deficiency and may arise from various other medical issues. Thus, muscle cramping and twitching is the most directly linked symptom resulting from inadequate parathyroid hormone production.

Deficient production of parathyroid hormone (PTH) leads to a condition known as hypoparathyroidism. This condition is characterized by low levels of calcium in the blood, as PTH is crucial for maintaining calcium homeostasis. When PTH is deficient, the body struggles to mobilize calcium from the bones, reabsorb calcium in the kidneys, and activate vitamin D, which is essential for calcium absorption in the intestines.

As a consequence of low calcium levels (hypocalcemia), individuals commonly experience symptoms such as muscle cramping and twitching, a phenomenon known as tetany. This occurs because calcium is vital for proper neuromuscular function. Low levels of calcium can lead to increased excitability of nerve and muscle cells, resulting in involuntary muscle contractions, spasms, and cramps.

The other options are less relevant because elevated levels of calcium are associated with excess PTH production rather than deficiency. Frequent headaches and joint pain and swelling do not directly correlate with the physiological effects of parathyroid hormone deficiency and may arise from various other medical issues. Thus, muscle cramping and twitching is the most directly linked symptom resulting from inadequate parathyroid hormone production.