Nursing Elites

1. When a client needs oxygen therapy, what is the highest flow rate that oxygen can be delivered via nasal cannula?

• A. 2 liters/minute
• B. 4 liters/minute
• C. 6 liters/minute
• D. 8 liters/minute

Correct answer: C

Rationale: The correct answer is 6 liters/minute. When a client requires oxygen therapy, the maximum flow rate that oxygen can be delivered via nasal cannula is 6 liters/minute. Nasal cannula can effectively deliver oxygen up to 6 liters/minute. Flow rates exceeding 6 liters/minute may lead to drying of the nasal passages and discomfort for the client. Higher flow rates, like 8 liters/minute, should be administered using a mask to ensure sufficient oxygenation. Options A, B, and D are incorrect as they indicate flow rates that surpass the recommended maximum for nasal cannula delivery.

2. Which of the following foods should be avoided by clients who are prone to developing heartburn as a result of gastroesophageal reflux disease (GERD)?

• A. lettuce
• B. eggs
• C. chocolate
• D. butterscotch

Correct answer: C

Rationale: The correct answer is chocolate. Ingestion of chocolate can reduce lower esophageal sphincter (LES) pressure, leading to reflux and clinical symptoms of GERD. Lettuce and eggs do not significantly affect LES pressure, making them less likely to trigger GERD symptoms. Butterscotch, like lettuce and eggs, does not have a notable effect on LES pressure, so it is not as likely to worsen GERD symptoms as chocolate. Therefore, chocolate is the food to be avoided by clients prone to heartburn due to GERD.

3. How far should the enema tube be inserted for a client to have a flatus-reducing enema?

• A. 4 inches.
• B. 6 inches.
• C. 2 inches.
• D. 8 inches.

Correct answer: A

Rationale: The correct answer is to insert the enema tube 4 inches. Enema tubing must be passed beyond the internal sphincter, which is typically around 4 inches in an adult. Inserting the tube only 2 inches is not far enough to reach this point. On the other hand, inserting the tube 6 or 8 inches is too far and might cause trauma to the bowel, which is unnecessary for a flatus-reducing enema. Therefore, the correct insertion depth of the enema tube is crucial to ensure effectiveness and safety in providing the intended treatment.

4. Which of the following lab values is elevated first after a client has a myocardial infarction?

• A. LDH
• B. troponin
• C. CPK
• D. SGOT

Correct answer: B

Rationale: The correct answer is troponin. Troponin levels are the most specific and sensitive markers for myocardial infarction, and they begin to rise within a few hours after the event. CPK, SGOT, and LDH are also enzymes that can indicate myocardial damage, but troponin is the earliest and most specific indicator. CPK typically rises 4-8 hours after an infarction, followed by SGOT (AST) at 8-12 hours, and LDH at 12-24 hours post-infarction.

5. Which of the following clients would be most appropriate for an LPN to assign to a nursing assistant?

• A. an 18-year-old client with a femur fracture who is just returning to the floor from the recovery unit
• B. an 84-year-old client 2 days post-op after knee replacement surgery who needs help ambulating
• C. a 35-year-old client who is suffering from an acute asthma attack
• D. a 20-year-old client with Cystic Fibrosis who needs an early morning sputum sample collection

Correct answer: D

Rationale: Collecting sputum samples on stable clients is within the scope of practice for an LPN. This task does not require immediate intervention or assessment by an RN or medical provider. An RN should perform the initial assessment on any client immediately post-op as it requires a higher level of assessment and monitoring. A client suffering from an acute asthma attack should be attended to by an RN or medical provider due to the potential severity and need for prompt intervention. Assigning a medically stable client who needs help ambulating to a nursing assistant is appropriate as it falls within their scope of practice and allows the LPN to focus on tasks that require their expertise.

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