A nurse is obtaining a blood specimen from a client who has a peripherally inserted central catheter. Which of the following actions should the nurse take?
Use a 3 mL syringe to flush the catheter.
Cleanse the port with povidone-iodine prior to obtaining the specimen.
Flush with 20 mL of 0.9% sodium chloride after obtaining the blood sample.
Instruct the client to perform the Valsalva maneuver during the blood draw.
The Correct Answer is D
A. Use a 3 mL syringe to flush the catheter: Small syringes (3 mL) create high pressure that can damage the lumen of a peripherally inserted central catheter (PICC). Larger syringes, typically 10 mL or greater, are recommended to safely flush and maintain catheter integrity.
B. Cleanse the port with povidone-iodine prior to obtaining the specimen: Current guidelines recommend using an alcohol-based antiseptic (e.g., 70% isopropyl alcohol) rather than povidone-iodine for cleaning catheter hubs due to faster action and reduced contamination risk.
C. Flush with 20 mL of 0.9% sodium chloride after obtaining the blood sample: While flushing is required, the volume depends on the protocol and whether blood was drawn for lab testing. Immediate flushing with 10 mL is often sufficient; 20 mL may be excessive unless the protocol specifies.
D. Instruct the client to perform the Valsalva maneuver during the blood draw: Performing the Valsalva maneuver increases intrathoracic pressure and reduces the risk of air embolism when accessing a central line. This is a recommended safety measure during blood draws from PICC lines.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Syphilis: Syphilis is a nationally notifiable disease in the United States. Healthcare providers are required to report cases to local or state public health authorities to facilitate disease tracking, outbreak management, and public health interventions.
B. Trichomoniasis: Trichomoniasis is not a nationally notifiable disease. While it is a common sexually transmitted infection, reporting is not required by law at the national level, though some states may have local reporting requirements.
C. Genital herpes: Genital herpes is not nationally reportable because it is highly prevalent and often managed in outpatient settings without mandatory reporting. Surveillance focuses on population studies rather than individual case reporting.
D. Human papillomavirus (HPV): HPV infections are not nationally notifiable. Although HPV is common and associated with cancers, individual cases are not reported to public health authorities. Reporting is limited to cancer registries for HPV-related malignancies.
Correct Answer is {"dropdown-group-1":"B","dropdown-group-2":"B"}
Explanation
Rationale for correct choices
• Inspect the child’s oropharynx: The child has bright red emesis and visible bleeding in the posterior pharynx, which indicates active post-tonsillectomy hemorrhage. Direct visualization helps confirm the bleeding source and severity. Early inspection supports rapid intervention because post-operative tonsillar bleeding can progress quickly and become life-threatening.
• Obtaining a set of vital signs: Active bleeding and vomiting bright red blood require immediate reassessment of vital signs to detect tachycardia, hypotension, or respiratory compromise. Hemoglobin and hematocrit are already low, increasing the child’s risk for hemodynamic instability. Timely vital signs guide urgent decisions about fluid resuscitation and notifying the provider.
Rationale for incorrect choices
• Offer the child a red popsicle: Providing red-colored fluids can mask ongoing bleeding and delay recognition of hemorrhage. The priority is to assess and stabilize the child with known bleeding, not to offer oral intake. This intervention risks obscuring the color of emesis or oral bleeding.
• Place the child in a supine position: Supine positioning increases the risk of aspiration when bleeding or vomiting is present. The child should be maintained upright to allow drainage and airway protection. Supine positioning does not address the current complication and may worsen respiratory safety.
• Encouraging the child to cough and deep breathe: Coughing can dislodge clots and worsen post-tonsillectomy bleeding. The child already has active bright red bleeding, so stimulating airway pressure would increase hemorrhage risk. This intervention is inappropriate in immediate postoperative bleeding scenarios.
• Requesting a prescription for codeine: Codeine is contraindicated in children after tonsillectomy due to risk of respiratory depression from ultra-rapid metabolism. Pain is mild, and bleeding—not pain—is the priority. Requesting codeine does not address the current danger of hemorrhage.
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