Which of These Metals Is/are Often Used to Help Prevent

question 4

Multiple Choice

Which of these metals is/are often used to help prevent the rusting of iron?
I. Al
II. Zn
III. Mg
IV. Na

• A) I only
• B) II only
• C) I and III
• D) I, II, and IV
• E) I, II, and III

---

Definitions:

Incentive Spirometer

A medical device used to help patients improve the functioning of their lungs through guided deep breathing exercises.

Volume-Oriented

An approach or practice that emphasizes the importance of volume, either in terms of quantity of work, production, or in medical terms, fluid management.

Preoperative Teaching

Educational activities and instructions provided to patients before undergoing surgical procedures to help them understand and prepare for the surgery, expected outcomes, and post-operative care.

Primary Pacemaker

denotes the sinoatrial (SA) node in the heart, which naturally sets the pace for heart rate by sending out electrical impulses.