which techniques should the nurse use to administer an intradermal id injection for a mantoux test to screen for tuberculosis tb select all that apply

HESI LPN

HESI CAT Exam

1. Which techniques should be used to administer an intradermal (ID) injection for a Mantoux test to screen for tuberculosis (TB)? Select all that apply.

A. Observe for an intradermal bleed after the antigen is injected
B. Select an ID site using the volar surface of the forearm
C. Use a 26 or 27-gauge needle with a length of 1/4 to 5/8 inches on a 1 ml calibrated syringe
D. Ensure that the needle is inserted into the skin with the bevel up

Correct answer: A

Rationale: Observing for an intradermal bleed after the antigen is injected is a proper technique for an ID injection. This is important to confirm the correct placement of the injection. Choice B is correct because the recommended site for an ID injection for a Mantoux test is the volar surface of the forearm. Choice C is incorrect because the standard needle size for an ID injection is usually 26 or 27 gauge with a length of 1/4 to 5/8 inches, not 25 gauge with a length of 1/2 inch. Choice D is incorrect because the needle should be inserted into the skin with the bevel facing up, not down.

2. The healthcare provider prescribes amoxicillin (Amoxil) 1.5 grams PO daily, in equally divided doses to be administered every 8 hours. The medication is available in a bottle labeled, “Amoxicillin (Amoxil) suspension 200 mg/5 ml.” How many ml should the nurse administer every 8 hours? (Enter numeric value only. If rounding is required, round to the nearest tenth.)

A. 12.5
B. 7.5
C. 10.0
D. 15.0

Correct answer: A

Rationale: To calculate the amount in ml that the nurse should administer every 8 hours, first, determine the amount of amoxicillin needed per dose. 1.5 grams daily divided by 3 doses equals 0.5 grams per dose. Since 0.5 grams is equivalent to 500 mg (1 gram = 1000 mg), and each 5 ml of the suspension contains 200 mg of amoxicillin, the nurse needs to administer (500 mg / 200 mg) * 5 ml = 12.5 ml every 8 hours. Therefore, the correct answer is 12.5 ml. Choices B, C, and D are incorrect because they do not reflect the accurate calculation based on the provided information.

3. An adult male with a 6 cm thoracic aneurysm is being prepared for surgery. The nurse reports to the healthcare provider that the client’s blood pressure is 220/112 mmHg, so an antihypertensive agent is added to the client’s IV infusion. Which finding warrants immediate intervention by the nurse?

A. Reports a tearing, sharp pain between his shoulder blades
B. Blood pressure reading of 200/100 mmHg 15 minutes later
C. Rose-colored urine draining from the urinary catheter
D. Sinus tachycardia with frequent premature ventricular beats (PVC)

Correct answer: A

Rationale: A tearing, sharp pain between the shoulder blades may indicate aortic dissection, a serious complication requiring immediate intervention. This symptom is highly concerning in a patient with a thoracic aneurysm. Choice B is not as urgent as the pain symptom described in choice A. Choice C could indicate hematuria but is not as critical as the potential aortic dissection in choice A. Choice D, sinus tachycardia with PVCs, may be related to the patient's condition but is not as indicative of an immediate life-threatening situation as the tearing, sharp pain indicative of aortic dissection.

4. What should be the school nurse's first action after being notified that Child A has bitten Child B on the arm, resulting in broken skin but no bleeding?

A. Apply antibiotic cream to Child B’s arm immediately
B. Determine if Child A has a history of Hepatitis C or HIV
C. Determine the date of Child B’s latest tetanus booster
D. Wash Child B’s arm thoroughly with soap and water

Correct answer: D

Rationale: The correct first action for the school nurse to take in this situation is to wash Child B’s arm thoroughly with soap and water. Washing the wound immediately is crucial to reduce the risk of infection from the bite. Applying antibiotic cream may come after cleaning the wound. Determining Child A's medical history or checking Child B's tetanus status is important but not the immediate priority when dealing with a bite wound.

5. Following morning care, a client with C-5 spinal cord injury who is sitting in a wheelchair becomes flushed and complains of a headache. Which intervention should the nurse implement first?

A. Check for any kinks or obstructions in the client’s Foley tubing
B. Assess the client’s blood pressure every 15 minutes
C. Administer a prescribed PRN dose of hydralazine (Apresoline)
D. Educate the client on recognizing symptoms of dysreflexia

Correct answer: B

Rationale: In a client with a C-5 spinal cord injury experiencing flushing and a headache, the priority intervention is to assess the client's blood pressure every 15 minutes. These symptoms could indicate autonomic dysreflexia, a potentially life-threatening condition. Assessing the blood pressure is crucial to identify and address this emergency situation promptly. Checking for kinks or obstructions in the Foley tubing (Choice A) is important but not the priority in this scenario. Administering hydralazine (Choice C) without knowing the blood pressure could be harmful as it may lead to a sudden drop in blood pressure. Educating the client on recognizing symptoms of dysreflexia (Choice D) is important for long-term management but is not the immediate action needed in this acute situation.