Chapter 43: Specimen Collection

Chapter 43: Specimen Collection

Complete Chapter Questions With Answers

Sample Questions Are Posted Below

MULTIPLE CHOICE

1. How should the nurse identify a patient before obtaining a laboratory specimen from him?

ANS:  A

Before obtaining a laboratory specimen, use at least two identifiers such as checking the identification number on the admission armband and asking the patient’s name. Patients who are confused or who have a language barrier may smile and not understand the question. The patient could also have the wrong armband on; checking it twice would not change that.

DIF:    Cognitive Level: Application           REF:   Text reference: p. 1055

OBJ:   Identify measures to minimize anxiety and promote safety for selected techniques.

TOP:   Positive Patient Identification           KEY:  Nursing Process Step: Implementation

MSC:  NCLEX: Physiological Integrity

2. When discussing the collection of a clean-voided urine specimen, it is important for the nurse to instruct the patient to:

ANS:  C

After the patient has initiated a urine stream, pass the urine specimen container into the stream and collect 90 to 120 mL of urine. A sterile specimen container is used. Pour antiseptic solution over cotton balls. A cotton ball or gauze is used to cleanse the perineum.

DIF:    Cognitive Level: Application           REF:   Text reference: p. 1056

OBJ:   Use correct technique for collecting clean-voided, timed, and catheterized urine specimens.

TOP:   Obtaining Urine Culture and Sensitivity (C&S) Specimen

KEY:  Nursing Process Step: Implementation

MSC:  NCLEX: Physiological Integrity

3. The nurse needs to obtain a sterile urine specimen for culture and sensitivity (C&S) from a patient who has an indwelling catheter. The catheter was placed the night before. What must the nurse do to obtain the specimen?

ANS:  B

Clamp the drainage tubing with a clamp or rubber band for 30 minutes to permit collection of fresh, sterile urine in the catheter tubing rather than draining into the bag. Do not collect a urine specimen for culture tests from a urine drainage bag unless it is the first urine to drain into a new sterile bag. Draw urine into a 3-mL syringe (for culture), or draw urine into a 20 mL-syringe (for routine urinalysis). Proper volume is needed to perform the test. Do not puncture Silastic, silicone, or plastic catheters. These are not self-sealing.

DIF:    Cognitive Level: Application           REF:   Text reference: p. 1057

OBJ:   Use correct technique for collecting clean-voided, timed, and catheterized urine specimens.

TOP:   Obtaining Urine C&S Specimen From a Catheter

KEY:  Nursing Process Step: Implementation

MSC:  NCLEX: Physiological Integrity

4. What should the nurse do first if a patient is unable to void on demand for a clean-voided specimen?

ANS:  C

If the patient is unable to urinate on demand, offer fluids if permitted. Allow more time for urine to accumulate in the bladder. Try obtaining a specimen after 30 minutes. If the patient has no urine in the bladder, Credé’s would not be useful. The risk for infection precludes the use of catheterization simply to obtain a specimen. If the patient is unable to void after several hours, the physician may need to be called to obtain an order for catheterization.

DIF:    Cognitive Level: Application           REF:   Text reference: p. 1058

OBJ:   Use correct technique for collecting clean-voided, timed, and catheterized urine specimens.

TOP:   Obtaining Urine C&S Specimen From a Catheter

KEY:  Nursing Process Step: Implementation

MSC:  NCLEX: Physiological Integrity