Chapter 37: Administering Intradermal, Subcutaneous, and Intramuscular Injections | - Nurselytic

Correct Answer: C

Rationale: For a PPD (purified protein derivative) test, which is an intradermal injection, a small gauge needle (25?27 gauge) with a short length (3/8 to 5/8 inch) is required to ensure the medication is injected just below the skin surface. A 25 g ? 7/8 in needle is appropriate.

Correct Answer: B

Rationale: b is correct because regular (clear) insulin should be drawn up first to prevent contamination with intermediate-acting (cloudy) insulin. a is incorrect as not all insulins can be mixed (e.g., Lantus cannot be mixed). c is incorrect as sites should be rotated daily, not weekly. d is incorrect as insulin should be stored in a refrigerator or cool place, not a dry cabinet. e is incorrect as the abdomen is the preferred site for insulin due to consistent absorption.

Correct Answer: E

Rationale: For a viscous medication like gamma globulin in a muscular adult, a larger gauge (18?21 g) and longer needle (1?1½ in) are needed to penetrate the muscle deeply. An 18 g ? 1½ in needle is appropriate for the ventrogluteal site in a muscular male.

Correct Answer: E

Rationale: The abdomen provides the fastest and most consistent absorption for insulin due to its subcutaneous fat and blood supply.

Correct Answer: A,C

Rationale: Insulin and heparin are high-alert medications requiring double or triple verification to prevent dosage errors.