Correct Answer: C

Rationale: The appropriate route of administration for insulin is subcutaneous. Subcutaneous injections are commonly used for insulin administration due to the slower absorption rate compared to intramuscular or intravenous routes, allowing for better control of blood glucose levels.

Correct Answer: A

Rationale: The most accurate method for assessing temperature in an alert client is the oral method. It provides a more reliable reflection of the body's core temperature compared to axillary or radial methods. In cases of dehydration, it is important to get an accurate temperature reading to monitor the client's condition closely.

Correct Answer: B

Rationale: Auscultation is a technique in physical examination used to assess the movement of air through the tracheobronchial tree. During auscultation, healthcare providers listen to lung sounds using a stethoscope to detect abnormalities such as wheezing, crackles, or diminished breath sounds, which can indicate conditions affecting the airways or lungs.

Correct Answer: B

Rationale: 1 teaspoon (tsp) is equivalent to approximately 60 drops. When converting between drops and teaspoons, it's important to consider the volume and size differences to ensure accurate measurements.

Correct Answer: C

Rationale: Insulin is the hormone secreted by the Islets of Langerhans in the pancreas. These specialized cells are responsible for regulating blood sugar levels by releasing insulin in response to high blood glucose levels. Insulin helps cells absorb glucose from the bloodstream, thereby lowering blood sugar levels.