Nursing Elites

1. You are taking care of a patient who has active TB. The patient has been put on airborne precautions and is in a special room. You must wear a HEPA mask when you enter the room. Now, the patient has to leave the room and go to the radiology department. How can you transport this patient to the radiology department without spreading TB throughout the hospital?

• A. Have everyone along the route to the radiology department wear a HEPA mask.
• B. Have patients along the route to the radiology department wear a HEPA mask.
• C. Have staff along the route to the radiology department wear a HEPA mask.
• D. Place a HEPA mask on the patient.

Correct answer: D

Rationale: To prevent the spread of TB throughout the hospital, it is essential to place a HEPA mask on the patient before transporting them to the radiology department. Expecting everyone along the route to wear a HEPA mask is not practical due to the high cost and the need for special fittings. Having patients or staff wear HEPA masks along the route is also not feasible and may not effectively contain the spread of TB.

2. A 70-year-old man has a blood pressure of 150/90 mm Hg in a lying position, 130/80 mm Hg in a sitting position, and 100/60 mm Hg in a standing position. How should the nurse evaluate these findings?

• A. These readings are a normal response and attributable to changes in the patient's position.
• B. The change in blood pressure readings is called orthostatic hypotension.
• C. The blood pressure reading in the lying position is within normal limits.
• D. The change in blood pressure readings is considered within normal limits for the patient's age.

Correct answer: B

Rationale: The correct answer is, 'The change in blood pressure readings is called orthostatic hypotension.' Orthostatic hypotension is defined as a drop in systolic pressure of ³20 mm Hg or ³10 mm Hg drop in diastolic pressure that occurs with a quick change to a standing position. This condition is common in individuals on prolonged bed rest, older adults, those with hypovolemia, or taking specific medications. The blood pressure readings provided in the question (150/90 mm Hg lying, 130/80 mm Hg sitting, and 100/60 mm Hg standing) demonstrate a significant change in blood pressure with position changes, which is indicative of orthostatic hypotension. Choices A, C, and D are incorrect because the readings do not indicate a normal response or blood pressure within normal limits for the patient's age; rather, they suggest the presence of orthostatic hypotension.

3. When dismissing a 5-year-old boy from the pediatrics unit, what type of seat belt restraint should the child wear as the parents drive the car to the front door of the hospital?

• A. A 5-point restraint in the back seat, facing backward
• B. A booster seat with a lap and shoulder belt in the back seat
• C. A lap belt in the back seat
• D. A lap and shoulder belt in the front seat

Correct answer: B

Rationale: A 5-year-old child riding in a car should use a restraint system for safety. The Centers for Disease Control and Prevention recommend that children under 13 years should not ride in the front seat of a car due to safety concerns. For a 5-year-old child, a booster seat with a lap and shoulder belt in the back seat is the most appropriate choice. This setup ensures proper protection and restraint for the child's size and age. Choice A is incorrect because a 5-point restraint system facing backward is not suitable for a 5-year-old child in a car. Choice C is incorrect as a lap belt alone does not provide adequate protection for a child of this age. Choice D is incorrect as children should not be seated in the front seat, especially at this young age.

4. Which of the following is the most likely cause of constipation in a client?

• A. Postponing bowel movement when the urge to defecate occurs
• B. Intestinal infection
• C. Antibiotic use
• D. Food allergies

Correct answer: A

Rationale: The correct answer is to postpone bowel movement when the urge to defecate occurs. Clients who delay bowel movements by ignoring the urge to defecate or not evacuating promptly, such as in situations where they are not near a bathroom, are at higher risk of developing constipation. This behavior leads to a decrease in bowel movement frequency, slowed intestinal motility, and increased fecal water absorption, resulting in hard, dry stools that are difficult to pass. Intestinal infection (choice B), antibiotic use (choice C), and food allergies (choice D) are less likely to be direct causes of constipation compared to postponing bowel movements.

5. In the Gram Stain procedure, which component acts as the mordant?

• A. Crystal violet
• B. Methyl alcohol
• C. Iodine
• D. Safranin

Correct answer: C

Rationale: In the Gram Stain procedure, the mordant is Gram's Iodine. The purpose of the mordant is to form a complex with the crystal violet, enhancing its ability to bind to the cell wall. Crystal violet is actually the primary stain used in the Gram Stain procedure to initially color all cells. Methyl alcohol is the decolorizer that removes the crystal violet from certain cell types. Safranin is the counterstain used to stain those cells that did not retain the crystal violet stain after the decolorization step.

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