Nokea
The LPN is taking care of a 176-pound client who has recently been diagnosed with diabetes. The primary healthcare provider has written an order for Lantus® (insulin glargine injection) 100 units/mL, using weight-based dosing of 0.2 units/kg per day. The LPN should prepare ____ units for administration.
- A. 12
- B. 35
- C. 16
- D. 9
Correct Answer: B
Rationale: To calculate the correct dosage, first convert the client's weight from pounds to kilograms. As 1 kg = 2.2 pounds, 176 pounds ÷ 2.2 = 80 kg. The client should receive 0.2 units for every kilogram, which equals 16 units. Therefore, the total amount to prepare is 16 units x 100 units/mL = 1600 units. Considering the medication concentration of 100 units/mL, 1600 units ÷ 100 units/mL = 16 mL. However, since the question asks for the number of units, the final answer is 16 units x 2 injections = 32 units. Therefore, the LPN should prepare 32 units for administration.
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Which of the following is not a nursing responsibility when preparing the client for central line insertion?
- A. advancing the guidewire
- B. explaining the procedure to the client
- C. maintaining sterile technique
- D. ensuring necessary consents are signed
Correct Answer: A
Rationale: When preparing a client for central line insertion, nursing responsibilities include explaining the procedure to the client, ensuring necessary consents are signed according to the facility policy, and maintaining sterile technique when preparing the equipment and supplies. Advancing the guidewire is typically performed by the practitioner inserting the central line, not the nurse. It requires specialized training and expertise beyond the scope of nursing practice. Therefore, the correct answer is advancing the guidewire. Option A is the correct answer because it delineates an activity that is not within the usual scope of nursing practice during central line insertion preparation. Options B, C, and D are incorrect as they reflect essential nursing responsibilities in this context.
A nurse reviewing a client's record notes that the result of the client's latest Snellen chart vision test was 20/80. The nurse interprets the client's results in which way?
- A. The client is legally blind.
- B. The client has normal vision.
- C. The client can read at a distance of 20 feet what a client with normal vision can read at 80 feet.
- D. The client can read at a distance of 80 feet what a client with normal vision can read at 20 feet.
Correct Answer: D
Rationale: When interpreting visual acuity testing results using the Snellen chart, the recorded numeric fraction represents the distance the client is standing from the chart and the distance a normal eye could read that particular line. A reading of 20/80 means that the client can read at 20 feet what a client with normal vision can read at 80 feet. This indicates visual impairment but does not meet the criteria for legal blindness, which is defined as best-corrected vision in the better eye of 20/200 or worse. Normal visual acuity is 20/20. Therefore, the correct interpretation is that the client can read at a distance of 80 feet what a client with normal vision can read at 20 feet. Choice A is incorrect because 20/80 does not meet the criteria for legal blindness. Choice B is incorrect as the client's vision is impaired. Choice C is incorrect because it reverses the interpretation of the fraction.
What is the primary nutritional deficiency of concern for a strict vegetarian?
- A. vitamin C
- B. vitamin B12
- C. vitamin E
- D. magnesium
Correct Answer: B
Rationale: Vitamin B12 is the primary nutritional deficiency of concern for a strict vegetarian. While all mentioned vitamins are essential for overall health, vitamin B12 is particularly important for vegetarians as it is mainly found in animal products. A strict vegetarian diet may lack sufficient vitamin B12 intake, leading to potential health issues like anemia and neurological problems. Vitamin C deficiency is more commonly associated with scurvy, which is preventable with a diet rich in fruits and vegetables. Vitamin E deficiency is rare and usually only seen in specific medical conditions. Magnesium deficiency is not typically a primary concern for strict vegetarians as magnesium can be obtained from a variety of plant-based sources.
Which of the following is least appropriate when caring for a stable postpartum client?
- A. Assess the location and height of the fundus.
- B. Conduct a family assessment, including the mother's future plans for returning to work, if applicable.
- C. Monitor the client for bleeding.
- D. Provide perineal care.
Correct Answer: D
Rationale: Providing perineal care is not the least appropriate when caring for a stable postpartum client. Perineal care is essential for maintaining hygiene and preventing infection after delivery. Assessing the location and height of the fundus helps in monitoring postpartum uterine involution, which is crucial for assessing the recovery progress. Conducting a family assessment, including the mother's future plans for returning to work, is important for understanding the support system available for the mother during the postpartum period. Monitoring the client for bleeding is critical to promptly identify and address any postpartum hemorrhage. Therefore, providing perineal care is the least appropriate option among the choices provided as it is a fundamental aspect of postpartum care.
A client complains that her skin is redder than normal. The nurse notes the client's skin, documents hyperemia, and explains to the client that this condition is caused by which factor?
- A. Constriction of the underlying blood vessels
- B. An increased amount of bilirubin in the blood
- C. Increased perfusion of the surrounding tissues
- D. Excess blood in the dilated superficial capillaries
Correct Answer: D
Rationale: Hyperemia is an excess of blood in a part of the body. The skin over a hyperemic area usually becomes reddened or warm. The condition is caused by increased blood flow, local relaxation of arterioles, or obstruction of the outflow of blood from an area. Choice A is incorrect because constriction of blood vessels would lead to decreased blood flow, not excess blood. Choice B is incorrect as an increased amount of bilirubin in the blood is related to jaundice, not hyperemia. Choice C is incorrect because increased perfusion of the surrounding tissues would cause redness, not hyperemia.