Question 1

Which term describes the formation of granules that cloud a liquid or settle to the bottom of a medication?

Accepted Answer

Precipitation is the process by which solutes become insoluble and form solid particles that settle to the bottom of a medication. Granulation refers to the process of forming granules, which may or may not lead to precipitation. Turbidity refers to the cloudiness of a liquid caused by the presence of particles in suspension, but these particles may not necessarily settle to the bottom. Opaqueness refers to the inability of light to pass through a substance, but does not necessarily indicate the presence of granules or turbidity.

Question 2

Which of the following statements describes the time period that should elapse before reading a diagnostic skin test?

Accepted Answer

A diagnostic skin test should be read 48-72 hours after it has been administered. This allows enough time for a delayed hypersensitivity reaction to occur, which is what the test measures. Reading the test too soon or too late can lead to inaccurate results.

Question 3

The inner lower arm, upper chest, and back are sites that can be used when using the ___________________ route to administer an injection.

Accepted Answer

The intradermal route is used for injections that are administered into the dermis, just below the epidermis. This route is commonly used for allergy tests and tuberculosis skin tests, and the inner lower arm, upper chest, and back are typical sites for these injections due to the sensitivity of the skin in these areas for observing reactions.

Question 4

Which client information is NOT considered when choosing a site to administer an injection?

Accepted Answer

The client's gender is not a factor in choosing a site to administer an injection. The factors that are considered include the client's build, age, and other recent injections.

Question 5

Which statement describes what each calibration mark represents on a 3-cc syringe?

Accepted Answer

Each calibration mark on a 3-cc syringe represents two-tenths of a milliliter (0.2 mL), as 3 cc (cubic centimeters) is equivalent to 3 mL, and these syringes typically have 15 marks between each milliliter, dividing it into 0.2 mL increments.

Question 6

Which statement describes the proper way to dissolve a reconstituted medication completely?

Accepted Answer

Rolling the vial between your hands is the proper way to dissolve a reconstituted medication completely as it provides gentle agitation without introducing air bubbles or causing any damage to the medication. Shaking the vial or rapidly inverting it can cause bubbles to form, while placing it on a countertop and waiting may not provide enough agitation for proper dissolution.

Question 7

When counting the number of marks between labeled units of measurement on a syringe, and there are 10 marks between units, each mark measures:

Accepted Answer

If there are 10 marks between labeled units and each labeled unit is 1 unit, then each mark represents 1/10th of a unit. This means that the correct choice is C, as each mark measures one-tenth of a unit.

Question 8

Which reaction indicates that a patient has a negative skin test?

Accepted Answer

Erythema alone without induration is not considered a positive reaction in a skin test. Induration is the key indicator of a positive reaction.

Question 9

What is the correct position of the bevel of the needle when performing an intradermal injection?

Accepted Answer

The correct position of the bevel of the needle when performing an intradermal injection is bevel up. This will allow for proper placement of the medication just beneath the epidermal layer of the skin.

Question 10

Which statement describes how to mix different types of insulin in a syringe?

Accepted Answer

When mixing different types of insulin in a syringe, it is important to withdraw the fast-acting type first, followed by the long-acting type, to prevent the fast-acting insulin from contaminating the long-acting insulin and altering its absorption rate. Therefore, option C is the correct statement. Option D is incorrect because it is possible and sometimes necessary to mix long-acting and fast-acting insulin, but following the correct order is crucial. Options A and B are incorrect because withdrawing the long-acting type first can contaminate it with fast-acting insulin.

Question 11

Which type of syringe would be used when administering an intradermal injection?

Accepted Answer

Tuberculin syringes are used for intradermal injections as they have a very small capacity (around 1 mL) and are designed to deliver a small amount of medication into the dermis layer of the skin. This is typically used for allergy testing or tuberculosis skin testing. Standard three cc and five cc syringes and insulin syringes are not appropriate for intradermal injections.

Question 12

Which dosage range describes the amount of medication that is given by the intradermal route?

Accepted Answer

The dosage range for intradermal injections is typically 0.1-0.2 mL. This is a very small amount of medication, as intradermal injections are given just below the surface of the skin. Options A, B, and D describe dosage ranges that are either too small or too large for intradermal injections.

Question 13

When counting the number of marks between labeled units of measurement, and there are five marks, each mark measures:

Accepted Answer

If there are five marks between labeled units, each mark represents 1/5 of the distance between the units, which is two-tenths (0.2) of a unit.

Question 14

Which statement accurately describes the total amount of liquid that should be in a syringe after mixing two drugs?

Accepted Answer

When mixing two drugs, the total amount of liquid in the syringe should be the same as the two individual doses added together. This ensures that the patient is receiving the correct amount of each medication. Therefore, choice D is the most accurate statement.

Question 15

Which angle(s) should be used when administering an intradermal injection?

Accepted Answer

Intradermal injections are typically administered at a shallow angle of 5º-15º to ensure the medication is delivered just beneath the skin's surface.

Question 16

Which term describes the process of adding liquid to a medication that has been stored in powdered form?

Accepted Answer

Reconstituting is the process of adding liquid to a medication that has been stored in powdered form. This is often done with antibiotics, vaccines, and other medications that can be chemically unstable in liquid form. Once the powder is mixed with the appropriate amount of liquid, it becomes a suspension or solution that can be taken orally, injected, or used topically.

Question 17

Which statement describes a use of intradermal injections?

Accepted Answer

Intradermal injections are commonly used for tuberculosis skin tests, such as the Mantoux test, to determine exposure to tuberculosis.

Question 18

Which gauge and length of the needle is used to perform an intradermal injection?

Accepted Answer

Intradermal injections typically use a 25 to 26 gauge needle that is 3/8-inch in length. This small, fine gauge needle is ideal for the shallow injection needed to administer the substance into the dermis.

Question 19

When reading a diagnostic skin test, the healthcare worker is observing the injection site for: does not belong and not related to learning outcomes - also if different diagnostic test may observe for other reaction

Accepted Answer

When reading a diagnostic skin test, the healthcare worker is typically observing for induration (hardening of the skin) and erythema (redness) at the injection site. This indicates a positive reaction and helps to diagnose conditions like tuberculosis or allergies. Inflammation and edema (swelling) may also be observed but are not the primary indicators of a positive test. Irritation and pruritus (itchiness) may occur at the injection site but do not necessarily indicate a positive reaction. Urticaria (hives) and pustules (pus-filled bumps) are not typically associated with diagnostic skin testing.

Question 20

Which term describes what is observed at the injection site if an intradermal injection is administered correctly?

Accepted Answer

A correct intradermal injection will result in the formation of a small bubble or bleb under the skin, which is the intended site of medication absorption. There may be some mild inflammation and induration (hardening of the skin) as well, but the presence of a bleb is the most significant indicator of correct placement. A wheel refers to a raised, reddened area that can occur with some subcutaneous injections.

Quiz 4: Administering Parenteral Medications