The nurse is planning to administer a tuberculin test with a 27-gauge, 5/8-inch needle. At which angle will the nurse insert the needle?
15 degree
90 degree
30 degree
45 degree
The Correct Answer is A
A. The tuberculin test is administered intradermally, and the needle should be inserted at a 15-degree angle to ensure the medication is delivered just under the surface of the skin.
B. A 90-degree angle is used for intramuscular injections, not for intradermal tests like the tuberculin test.
C. A 30-degree angle is commonly used for subcutaneous injections and is too deep for an intradermal injection.
D. A 45-degree angle is also used for subcutaneous injections but is not suitable for intradermal injections.
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Correct Answer is B
Explanation
A. An air vent allowing bubbles into the blood would be unsafe and can cause air embolism, so this option is incorrect.
B. Using tubing with a filter is standard practice for blood transfusions to prevent clots and debris from entering the patient’s bloodstream, making this the correct choice.
C. Mixing additional electrolytes into the blood is not a standard practice during transfusions, as it can cause complications; thus, this option is not appropriate.
D. Two-way valves are not typically used in blood transfusion setups; the goal is to keep the blood product separate from other fluids unless specifically indicated.
Correct Answer is B
Explanation
A. "Risk for infection related to chest x-ray procedure" is not an appropriate diagnosis because a chest x-ray is a diagnostic tool, and pneumonia itself is the concern for infection.
B. "Impaired gas exchange related to alveolar-capillary membrane changes" is correct as pneumonia causes inflammation and consolidation in the lungs, which directly impacts gas exchange.
C. "Risk for deficient fluid volume related to dehydration" does not apply specifically to pneumonia unless the patient presents signs of dehydration, which is not indicated in the scenario.
D. "Ineffective breathing pattern related to pneumonia" could also be a valid diagnosis, but the primary concern given the information provided is gas exchange impairment.