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 C
Explanation
A. Discontinuing pain medication may not be appropriate, as it can lead to inadequate pain management for the patient. Pain management is crucial for terminally ill patients.
B. While abdominal massage may help relieve mild constipation, it is not a reliable primary intervention for more severe constipation caused by medication.
C. Laxatives are commonly prescribed for constipation related to pain medication and are an effective method to promote bowel movements, making this the best choice.
D. Administering enemas twice daily can be excessive and may cause discomfort or lead to dependency, making this option less favorable than using laxatives.
Correct Answer is A
Explanation
A. The P wave represents atrial depolarization, which is initiated by the SA node, the heart's natural pacemaker.
B. The AV node is responsible for conducting impulses from the atria to the ventricles but does not initiate the P wave.
C. The Bundle of His transmits the electrical impulses to the ventricles but is not directly associated with the P wave.
D. Purkinje fibers are involved in ventricular depolarization, which corresponds to the QRS complex, not the P wave.