A Patient Is Admitted to the Emergency Department with Severe

question 6

Multiple Choice

A patient is admitted to the emergency department with severe fatigue and confusion. Laboratory studies are done. Which laboratory value will require the most immediate action by the nurse?

• A)Arterial blood pH is 7.32.
• B)Serum calcium is 18 mg/dL.
• C)Serum potassium is 5.1 mEq/L.
• D)Arterial oxygen saturation is 91%.

---

Definitions:

Primary Key

A field (or attribute) of a record that uniquely identifies that record so that it can be retrieved, updated, and sorted.

Identifier Field

In databases, a specific column or attribute used to uniquely determine a record or row in a table, serving as a primary key or unique identifier.

Foreign Key

A column or set of columns in a relational database table that provides a link between data in two tables, used to maintain the integrity of the data by ensuring that relationships between tables remain consistent.

Primary Key

An attribute or set of attributes that uniquely identifies a record in a database table.