A nurse is caring for a client who has an implanted venous access port.
Which of the following should the nurse use to access the port?
butterfly needle
An angiocatheter
A 25-gauge needle
A noncoring needle
The Correct Answer is D
The correct answer is choice D, a noncoring needle.
A noncoring needle is a special type of needle that has a beveled tip and a side hole. It is designed to prevent damage to the port’s septum, which is the soft silicone top that serves as the vein access point.
A noncoring needle also reduces the risk of infection and clotting.
Choice A is wrong because a butterfly needle is a small, winged needle that is used for peripheral venous access, not for accessing a port. A butterfly needle can damage the port’s septum and cause leakage or infection.
Choice B is wrong because an angiocatheter is a thin, plastic tube that is inserted into a vein using a needle.
It is used for short-term IV therapy, not for accessing a port. An angiocatheter can also damage the port’s septum and cause complications.
Choice C is wrong because a 25-gauge needle is too small to access a port.
A 25-gauge needle is typically used for subcutaneous injections, not for intravenous injections. A 25-gauge needle can also clog the port or cause hemolysis (breakdown of red blood cells).
Normal ranges for ports vary depending on the type and size of the port, but generally they have a reservoir diameter of 1.5 to 2.5 cm, a catheter length of 40 to 60 cm, and a catheter diameter of 0.8 to 1.2 mm. Ports are usually flushed with saline or heparin solution every 4 to 6 weeks when not in use to prevent clotting.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The correct answer is choice A. A client who has a hip fracture and a new onset of tachypnea.
This client has a high risk of developing a pulmonary embolism, which is a life-threatening condition that requires immediate intervention.
Tachypnea is a sign of respiratory distress and hypoxia, which can indicate a pulmonary embolism.
The nurse should assess this client first and notify the provider.
Choice B is wrong because a client who has diabetes mellitus and an HbA1c of 6.8% is wellcontrolled and does not need urgent attention.
The normal range for HbA1c is 4% to 6%, and the goal for diabetic clients is less than 7%.
Choice C is wrong because a client who has epidural analgesia and weakness in the lower extremities is expected to have some degree of motor impairment due to the medication.
The nurse should monitor the client’s sensation, movement, and pain level, but this is not a priority over choice A. Choice D is wrong because a client who has sinus arrhythmia and is receiving cardiac monitoring is not in immediate danger.
Sinus arrhythmia is a normal variation of heart rhythm that occurs with breathing.
The nurse should observe the client’s vital signs and cardiac rhythm, but this is not a priority over choice A.
The correct answer is choice A. A client who has a hip fracture and a new onset of tachypnea.
This client has a high risk of developing a pulmonary embolism, which is a life-threatening condition that requires immediate intervention.
Tachypnea is a sign of respiratory distress and hypoxia, which can indicate a pulmonary embolism.
The nurse should assess this client first and notify the provider.
Choice B is wrong because a client who has diabetes mellitus and an HbA1c of 6.8% is wellcontrolled and does not need urgent attention.
The normal range for HbA1c is 4% to 6%, and the goal for diabetic clients is less than 7%.
Choice C is wrong because a client who has epidural analgesia and weakness in the lower extremities is expected to have some degree of motor impairment due to the medication.
The nurse should monitor the client’s sensation, movement, and pain level, but this is not a priority over choice A. Choice D is wrong because a client who has sinus arrhythmia and is receiving cardiac monitoring is not in immediate danger.
Sinus arrhythmia is a normal variation of heart rhythm that occurs with breathing.
The nurse should observe the client’s vital signs and cardiac rhythm, but this is not a priority over choice A.
Correct Answer is C
Explanation
, dizziness.
Dizziness is a manifestation of hypovolemia, which is a decrease in blood volume due to fluid loss.
Hypovolemia can cause orthostatic hypotension, which is a drop in blood pressure when changing positions. This can lead to dizziness, lightheadedness, or fainting.
Choice A, epistaxis, is wrong because it is not a sign of hypovolemia, but rather a possible cause of it. Epistaxis is a nosebleed that can result from trauma, infection, dryness, or coagulation disorders.
Choice B, headache, is wrong because it is not a specific sign of hypovolemia, but rather a nonspecific symptom that can have many causes. Headache can be associated with dehydration, but it can also be caused by stress, infection, inflammation, or other factors.
Choice D, shortness of breath, is wrong because it is not a sign of hypovolemia, but rather a sign of fluid volume excess.
Fluid volume excess is an increase in blood volume due to fluid retention or overload. Fluid volume excess can cause dyspnea, which is difficulty breathing or shortness of breath.
Normal ranges for blood pressure are 90/60 mm Hg to 120/80 mm Hg for adults.
Normal ranges for heart rate are 60 to 100 beats per minute for adults.
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