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9. Bone

暂无描述。系统推荐的高质量记忆内容，适合每天坚持背诵学习。

卡片总数: 20 张•内容版本: v4•公开卡包•更新时间: 8/1/2026

卡片预览 (20 张)

#1
正面 (问题)

Best anti-coagulant for calcium analysis specimens

背面 (解答)

Heparin if plasma NO EDTA, CITRATE, OXALATE Serum best

#2
正面 (问题)

Why is pH an important consideration in ionized calcium determinations

背面 (解答)

• Decreased pH = Ca2+ dissociates from its complexes forms = increases amount of free ionized Ca2+ in serum

#3
正面 (问题)

Softening of bone due to defective bone mineralization (formation of osteoid)

背面 (解答)

Osteomalacia

#4
正面 (问题)

How is ionized calcium measured?

背面 (解答)

Measured by ion selective electrodes (ISEs)

#5
正面 (问题)

What reagent is used to determine the concentration of serum inorganic phosphate?

背面 (解答)

Ammonium molybdate

#6
正面 (问题)

What is the most common cause of hypercalcemia?

背面 (解答)

Primary hyperparathyroidism

#7
正面 (问题)

What substances regulate calcium levels?

背面 (解答)

• PTH • Calcitonin • Vitamin D

#8
正面 (问题)

3 main regulators of Ca2+/PO4-/Mg2+

背面 (解答)

• PTH • Calcitonin • Vitamin D

#9
正面 (问题)

A patient exhibits signs of tetany but her ionized calcium is normal. What other analyte should be checked?

背面 (解答)

Mg2+ Low levels also cause tetany

#10
正面 (问题)

Where is PTH produced and what is its main action

背面 (解答)

• Produced in parathyroid glands • Increases serum Ca2+ and decreases phosphates • PTH increased in primary hyperparathyroidism • PTH decreased in hypothyroidism

#11
正面 (问题)

How does hyperparathyroidism affect the level of serum phosphorus?

背面 (解答)

Decreases it

#12
正面 (问题)

What does the lab measure to detect excess bone formation?

背面 (解答)

Alkaline phosphatase

#13
正面 (问题)

Which anticoagulants cause a false DECREASE in Ca2+? How?

背面 (解答)

• EDTA • Citrate • Oxalate All prevent coagulation by chelating Ca2+

#14
正面 (问题)

What is the REFERENCE method for total calcium?

背面 (解答)

Atomic absorption

#15
正面 (问题)

What is tetany?

背面 (解答)

Muscle spasms, cramps, irritability due to decreased Ca2+/Mg2+

#16
正面 (问题)

What is the most abundant mineral in the body?

背面 (解答)

Calcium, 99% in bones

#17
正面 (问题)

Chronic disorder showing enlarged and deformed bone

背面 (解答)

Paget’s disease

#18
正面 (问题)

Bone mineralization deficiency that is a direct result of electrolyte and endocrine derangement associated w/ end stage renal disease (ESRD)

背面 (解答)

Renal osteodystrophy

#19
正面 (问题)

Which form of calcium is physiologically active?

背面 (解答)

Ionized calcium

#20
正面 (问题)

What happens to calcium when phosphorus is increased?

背面 (解答)

Ca2+ decreased when PO4- increased Reciprocal relationship