A nurse is preparing to administer purified protein derivative (PPD) skin test to another healthcare worker. Which of the following statements about the test is incorrect?
You will need to return in 48-72 hours to have the test read
A positive skin test will mean you need to have a follow up a chest x-ray
"induration of greater than or equal to 10 millimeters means you have been exposed
"induration of greater than or equal to 10 millimeters means you have active tuberculosis
The Correct Answer is D
A. You will need to return in 48-72 hours to have the test read:
This statement is correct. The purified protein derivative (PPD) skin test, also known as the tuberculin skin test (TST), must be read within 48-72 hours after administration. If the test is not read within this timeframe, the results may not be valid, and the test may need to be repeated. The test evaluates the presence of induration (swelling) at the injection site, which indicates a delayed-type hypersensitivity reaction to the tuberculosis antigen.
B. A positive skin test will mean you need to have a follow-up chest x-ray:
This statement is correct. A positive PPD skin test indicates exposure to Mycobacterium tuberculosis (the bacteria that causes tuberculosis). However, a positive result does not necessarily mean the person has active tuberculosis. A follow-up chest x-ray is typically recommended to determine whether active TB disease is present. The chest x-ray helps to assess for signs of active infection, such as lung lesions.
C. "Induration of greater than or equal to 10 millimeters means you have been exposed":
This statement is correct. In the context of a PPD skin test, induration (raised area of the skin) of 10 millimeters or more is generally considered a positive result, indicating exposure to tuberculosis. However, the exact threshold for what is considered positive can vary based on individual risk factors. A positive test means the person has been exposed to the tuberculosis bacteria, but it does not confirm active disease.
D. "Induration of greater than or equal to 10 millimeters means you have active tuberculosis":
This statement is incorrect. A positive PPD skin test result indicates exposure to Mycobacterium tuberculosis, but it does not confirm active tuberculosis (TB) infection. The induration reflects prior exposure or latent infection. To determine if the individual has active TB, additional diagnostic tests such as a chest x-ray, sputum cultures, and possibly a molecular test are required. A positive PPD result does not differentiate between latent TB infection and active TB disease.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. The blockage is most likely in the right parietal region:
While a facial droop and weakness can be indicative of a stroke, the specific location of the blockage cannot be definitively determined based on the symptoms alone. A right-sided facial droop suggests that the lesion or event likely involves the left side of the brain, particularly the frontal or temporal regions, as these areas are typically associated with facial motor control. A parietal lesion would more commonly result in sensory deficits or spatial issues, not primarily facial droop. Therefore, this statement is not correct in this case.
B. This type of event can be one of the primary warning signs of a future stroke:
The client’s presentation of unilateral facial droop and weakness that resolves spontaneously within an hour is highly consistent with a transient ischemic attack (TIA). A TIA, often referred to as a "mini-stroke," is characterized by temporary neurological deficits that resolve without permanent damage. TIAs are considered warning signs of a potential future stroke, and the client should be evaluated promptly to address risk factors and prevent a more serious, permanent stroke.
C. The signs and symptoms are most consistent with an acute hemorrhagic stroke:
An acute hemorrhagic stroke typically presents with sudden and severe neurological deficits, such as a severe headache, vomiting, and loss of consciousness. Hemorrhagic strokes do not typically resolve spontaneously within an hour. The client's symptoms (unilateral facial droop and weakness that resolve within an hour) are more indicative of a TIA, not a hemorrhagic stroke. A hemorrhagic stroke would likely result in sustained deficits and a more urgent clinical presentation.
D. The signs and symptoms are most consistent with a focal awareness seizure:
Focal awareness seizures (previously known as simple partial seizures) generally involve abnormal electrical activity in a specific area of the brain, leading to symptoms such as motor twitches or sensory disturbances, but not typically a full facial droop or weakness. These seizures do not cause symptoms that resolve in such a short time, nor do they present with unilateral weakness in the manner described here. Therefore, this scenario is not consistent with a seizure disorder.
Correct Answer is C
Explanation
A. "Early ambulation can help keep your lungs expanded and prevent pneumonia":
This statement is correct. Early ambulation is beneficial for respiratory function as it helps to keep the lungs expanded, encouraging deeper breaths and better oxygenation. This can help prevent complications like pneumonia and atelectasis, which are common after surgery due to immobility and anesthesia.
B. "Early ambulation is one part of preventing blood clots from forming in your legs":
This statement is also correct. Early ambulation is an important measure in preventing deep vein thrombosis (DVT) and pulmonary embolism (PE), which are common postoperative complications. Movement and walking promote circulation, reducing the risk of blood clots forming in the legs.
C. "Early ambulation usually delays wound healing and increases the risk of wound infection":
This statement is incorrect. Early ambulation does not delay wound healing or increase the risk of infection. In fact, early movement can help improve circulation, which is crucial for wound healing and tissue repair. Gentle movement and ambulation typically have positive effects on wound healing by promoting blood flow to the surgical site. However, patients should avoid excessive strain or stress on the wound to prevent dehiscence or other complications.
D. "Early ambulation can help your bladder and bowels recover from the anesthesia":
This statement is correct. Early ambulation helps stimulate gastrointestinal and urinary systems, which may be sluggish after anesthesia. Walking can encourage the return of normal bowel and bladder function by promoting peristalsis and helping to prevent constipation or urinary retention, both of which can be common after surgery.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.