Chapter 28 Diagnostic Testing

Chapter 28  Diagnostic Testing

Complete Chapter Questions And Answers
 

Sample Questions

MULTIPLE CHOICE

1. The nurse is providing care to a client who received sedation for a procedure that minimally depressed the level of consciousness and maintained a patent airway. This client received:
a.
conscious sedation.
c.
regional anesthesia.
b.
local anesthesia.
d.
general anesthesia.

ANS: A
Conscious procedural sedation is a minimally depressed level of consciousness during which the client retains the ability to maintain a continuously patent airway and responds appropriately to physical stimulation and verbal commands. Local anesthesia is when the client loses sensation to a localized body part. Regional anesthesia is when the client loses sensation in an area of the body. General anesthesia is when the client loses all sensation and consciousness.

PTS: 1 DIF: Analysis
REF: Care of the Client During Diagnostic Testing| Care of the Client After Diagnostic Testing

2. The nurse should do which of the following to prevent hemoconcentration when collecting blood specimens?
a.
Encourage the client to drink fluids.
b.
Do not keep the tourniquet on the arm too long.
c.
Dilute the specimen immediately.
d.
Use a large-bore needle.

ANS: B
To prevent hemoconcentration when collecting blood specimens, the nurse should avoid the prolonged application of a tourniquet during venipuncture. Encouraging the client to drink fluids will not prevent hemoconcentration. Diluting the specimen will not prevent hemoconcentration. Using a large-bore needle will not prevent hemoconcentration.

PTS: 1 DIF: Application REF: Venipuncture

3. When performing a venipuncture for a specimen, the nurse should:
a.
select an arm in which an IV is infusing.
b.
apply the tourniquet 3 to 4 inches above the elbow.
c.
not palpate a distal pulse following application of the tourniquet.
d.
select a vein that is not dilated.

ANS: B
When performing a venipuncture, the nurse should apply the tourniquet 3 to 4 inches above the elbow. The nurse should avoid using an arm with an IV infusion. The nurse should palpate a distal pulse after applying the tourniquet. The nurse should select a vein that is dilated.

PTS: 1 DIF: Application REF: Procedure 28-1 Performing Venipuncture

4. The nurse realizes that which of the following conditions would prevent a client from being able to have an arterial puncture performed?
a.
Client has been vomiting.
c.
Client has a respiratory condition.
b.
Client is receiving oxygen therapy.
d.
Client is on anticoagulant therapy.

ANS: D
Arterial blood samples are contraindicated in clients receiving anticoagulant therapy. The other conditions would not prevent the client from being able to have an arterial puncture performed.

PTS: 1 DIF: Analysis REF: Arterial Puncture

5. After a client has an arterial puncture, the nurse should do which of the following?
a.
Apply heat to the puncture site.
b.
Observe for rash and dyspnea.
c.
Apply pressure for at least 5 minutes.
d.
Encourage immediate range of motion.

ANS: C
Direct pressure must be applied to the puncture site until all bleeding has stopped, which is a minimum of 5 minutes. Heat should not be applied to the site since this will encourage bleeding. Observing for rash and dyspnea is not indicated for an arterial puncture. Encouraging immediate range of motion is not indicated for an arterial puncture.

PTS: 1 DIF: Application REF: Arterial Puncture