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What is the last step when inserting an IV cannula?
- A. Secure the cannula with tape.
- B. Document the insertion site, date, and type of cannula used.
- C. Assess the site
- D. Place a sterile dressing over the insertion site. INFLAMMATORY AND INFECTIOUS DISTURBANCES Caring for clients with upper respiratory infections
Correct Answer: D
Rationale: The last step when inserting an IV cannula is to place a sterile dressing over the insertion site. This helps to protect the site from contamination and reduce the risk of infection. A sterile dressing also helps to maintain the integrity of the insertion site and prevent any foreign materials from entering the wound. Additionally, the dressing provides a barrier between the cannula site and the external environment, promoting healing and reducing the chance of complications.
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The client is suspected of having myasthenia gravis. Edrophonium (Tensilon) 2 mg is administered intravenously to determine the diagnosis. Which of the following indicates that the client has myasthenia gravis?
- A. Joint pain following administration of the medication
- B. Feelings of faintness, dizziness, hypotension, and signs of flushing in the client
- C. A decrease in muscle strength within 30 to 60 seconds following administration of the medication.
- D. An increase in muscle strength within 30 to 60 seconds following administration of the medication
Correct Answer: D
Rationale: Edrophonium (Tensilon) is a short-acting cholinesterase inhibitor used in the Tensilon test to aid in the diagnosis of myasthenia gravis. In patients with myasthenia gravis, there is a deficiency of acetylcholine at the neuromuscular junction, leading to muscle weakness. By inhibiting the breakdown of acetylcholine, edrophonium temporarily increases the availability of acetylcholine at the neuromuscular junction.
Which of the ff is the result of central nervous system manifestations?
- A. Congestive Heart Failure c.Valve damage
- B. Chorea
- C. Pericarditis
Correct Answer: B
Rationale: Chorea is the result of central nervous system manifestations. Chorea is a movement disorder characterized by involuntary, brief, random, and irregular muscle movements that are often seen in neurological conditions such as Huntington's disease. The central nervous system is responsible for controlling and coordinating movements, so any dysfunction in the central nervous system can lead to movement disorders like chorea. Therefore, chorea is directly related to central nervous system manifestations, unlike congestive heart failure, valve damage, or pericarditis which are primarily related to cardiovascular issues.
Why must clients who will undergo diagnostic skin test avoid taking antihistamine or cold preparations for at least 48-72 hrs before testing?
- A. Antihistamines may increase the potential for excessive bleeding
- B. Antihistamines may aggravate the allergic reaction
- C. Antihistamines may increase the potential for false negative results
- D. Antihistamines may cause wheezing
Correct Answer: C
Rationale: Antihistamines are medications commonly used to relieve symptoms of allergies, including itching, sneezing, and hives. When a client undergoing a diagnostic skin test for allergies takes antihistamines, it can suppress the body's allergic response, leading to false negative results. This means that the test may not accurately identify all the substances to which the client is allergic, potentially leading to a misdiagnosis. To ensure the accuracy of the skin test, clients are advised to avoid taking antihistamines or cold preparations for at least 48-72 hours before the testing to allow their body to exhibit the appropriate allergic response.
The nurse is assessing a 3-day-old, breastfed newborn who weighed 7 pounds, 8 ounces at birth. The newborn's mother is now concerned that the newborn weighs 6 pounds, 15 ounces. Which is the most appropriate nursing intervention?
- A. Recommend supplemental feedings of formula.
- B. Explain that this weight loss is within normal limits.
- C. Assess child further to determine cause of excessive weight loss.
- D. Encourage mother to express breast milk for bottle feeding the newborn.
Correct Answer: B
Rationale: It is normal for newborns to lose weight in the first few days of life, typically up to 10% of their birth weight. In this case, the newborn's weight loss from 7 pounds, 8 ounces to 6 pounds, 15 ounces is within the expected range. It is important for the nurse to reassure the mother that this weight loss is normal and to encourage continued breastfeeding on demand to support newborn hydration and nutrition. There is no need for supplemental feedings at this point unless there are other signs of feeding issues or concerns.
Extraneural metastasis from primary brain tumors is MOST commonly likely to occur in which tumor?
- A. medulloblastoma
- B. primitive neuroectodermal tumor (PNET)
- C. ependymoma
- D. malignant glioma
Correct Answer: A
Rationale: Medulloblastoma is notorious for extraneural spread, particularly to bones and bone marrow.