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. A Yankauer suction tip catheter is used for suctioning secretions and does not assess cardiac function or afterload.
B. A blood pressure cuff is essential for measuring blood pressure, which can indicate increased afterload through elevated systemic vascular resistance.
C. An oxygen cannula is used for delivering supplemental oxygen and does not provide information about cardiac afterload.
D. A pulse oximeter measures oxygen saturation, which is not directly related to assessing cardiac afterload.
Correct Answer is B
Explanation
A. A patient with hypercapnia requires monitoring, but wearing an oxygen mask indicates some level of intervention is in place.
B. A patient with a chest tube should never ambulate with the chest tube unclamped, as this can lead to a collapsed lung and respiratory distress; thus, this patient should be prioritized.
C. While a patient with thick secretions may need suctioning, this is not as critical as ensuring the safety of a patient with an unclamped chest tube.
D. A patient with a new tracheostomy requires monitoring, but the presence of the obturator indicates readiness for emergencies; this does not take priority over the safety of the patient with the chest tube.