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Magazine Chapter 34: Problem 137
Which of the following forms of insulin can be given intravenously? A. Novolin \(70 / 30\) B. Novalog C. Lantus D. Novolin-R
Short Answer
Expert verified
D. Novolin-R
Step by step solution
01
- Understanding Insulin Types
Identify the four types of insulin given in the options: Novolin 70/30, Novalog, Lantus, and Novolin-R. Each type has different onset times, peak times, and durations of action.
02
- Forms of Insulin
Understand that not all insulins can be given intravenously. Only certain types of insulin, typically short-acting or regular insulins, are suitable for intravenous administration.
03
- Identify Regular Insulin
Research or recall that regular insulin, which is also known as 'R' insulin (like Novolin-R), can be administered intravenously. It is a short-acting insulin that begins to work quickly.
04
- Evaluate Each Option
Check each option to see if it is a regular insulin: - A. Novolin 70/30: This is a combination of 70% NPH (intermediate-acting) and 30% regular insulin (short-acting), but not suitable for IV use. - B. Novalog: This is a rapid-acting insulin, typically not given intravenously. - C. Lantus: This is a long-acting insulin, not suitable for IV use. - D. Novolin-R: Regular insulin which can be given intravenously.
05
- Conclusion
Conclude that the correct answer is the only regular insulin listed, which is Novolin-R.
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Key Concepts
These are the key concepts you need to understand to accurately answer the question.
types of insulin
Insulin comes in several different types, each with unique characteristics. Understanding these differences is important for managing diabetes effectively.
Types of insulin include:
Types of insulin include:
- Rapid-Acting Insulin: Starts working within 15 minutes and lasts 2-4 hours. Common examples are Novolog and Humalog.
- Short-Acting Insulin: Also known as regular insulin (like Novolin-R), it begins working within 30 minutes and remains effective for 3-6 hours.
- Intermediate-Acting Insulin: Starts working in 2-4 hours and can last up to 12-18 hours.聽 An example is NPH insulin (often mixed in combination insulins like Novolin 70/30).
- Long-Acting Insulin: Takes several hours to start working but can last up to 24 hours or more. Examples include Lantus and Levemir.
insulin administration routes
There are multiple ways to administer insulin, and each route has specific uses and benefits.
The main routes of insulin administration include:
The main routes of insulin administration include:
- Subcutaneous Injection: The most common method, where insulin is injected just under the skin. This method is used with pen devices or insulin syringes and is suitable for all types of insulin.
- Intravenous (IV) Injection: Only certain types of insulin, like regular insulin (e.g., Novolin-R), can be administered this way. IV administration is usually for emergency situations or in a hospital setting, as it allows the insulin to act very quickly.
- Insulin Pump: Delivers a continuous supply of insulin through a small tube inserted under the skin. This method is mainly used for rapid-acting insulin and provides a steady rate to closely mimic the body's natural insulin release.
- Inhalable Insulin: A less common method where rapid-acting insulin is inhaled into the lungs. Useful for those uncomfortable with injections.
regular insulin characteristics
Regular insulin, often marked with an 'R' (like Novolin-R), is a short-acting type of insulin used to manage blood glucose levels.
Characteristics of regular insulin include:
Characteristics of regular insulin include:
- Onset Time: Begins to work within 30 minutes of administration.
- Peak Time: Reaches its peak effect in 2-3 hours.
- Duration: Effects last for about 3-6 hours.
- Appearance: Clear and colorless solution.
- Flexibility: Can be given subcutaneously for routine management or intravenously for rapid effect in emergency situations.
