NCLEX-RN
NCLEX RN Exam Prep
1. You are ready to give your resident a complete bed bath. The temperature of this bath water should be which of the following?
- A. Cooler than a tub bath.
- B. Hotter than a tub bath.
- C. About 106 degrees.
- D. Over 120 degrees.
Correct answer: C
Rationale: The correct temperature for a bed bath water should be about 106 degrees. This temperature is considered safe and comfortable for residents. Using a bath thermometer is essential to ensure the water is not too hot, as hot water can cause burns. On the other hand, water that is too cool can lead to discomfort, shivering, and chilling. Options A, B, and D are incorrect because cooler water may cause discomfort and shivering, hotter water can lead to burns, and water over 120 degrees is considered too hot and risky for a resident's skin.
2. A physician's order instructs a nurse to take a temperature at the axilla. Where would the nurse place the thermometer?
- A. In the rectum
- B. In the mouth
- C. On the temples
- D. In the armpit
Correct answer: A
Rationale: When a physician's order specifies taking a temperature at the axilla, the nurse should place the thermometer in the armpit. The axilla is the anatomical area of the armpit located under the arms, proximal to the trunk. Placing the thermometer in the rectum (Choice A) is used for rectal temperature measurements, in the mouth (Choice B) for oral temperature measurements, and on the temples (Choice C) is not a common site for temperature assessment. Therefore, the correct placement based on the given instruction is in the armpit.
3. To which of the following do the CDC Standard precautions recommendations apply?
- A. Patients with diagnosed infections only
- B. Blood or body fluids with visible blood only
- C. All body fluids including sweat
- D. All patients receiving care in hospitals
Correct answer: D
Rationale: The correct answer is 'All patients receiving care in hospitals.' Standard precautions apply to all patients in healthcare settings, regardless of their infection status. These recommendations include all body fluids except sweat, non-intact skin, and mucous membranes. Choice A is incorrect as standard precautions are not limited to patients with diagnosed infections. Choice B is incorrect as standard precautions extend beyond blood or body fluids with visible blood. Choice C is incorrect as sweat is an exception to the body fluids covered under standard precautions.
4. 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.
5. Which gland of the endocrine system secretes a hormone that assists with the sleep/wake cycle?
- A. Pituitary
- B. Pineal
- C. Pancreas
- D. Hypothalamus
Correct answer: B
Rationale: The correct answer is the Pineal gland. The Pineal gland, located in the brain, secretes melatonin, which plays a crucial role in regulating the sleep/wake cycle in response to exposure to light. The Pituitary gland (Choice A) secretes various hormones but not specifically related to the sleep/wake cycle. The Pancreas (Choice C) secretes insulin and digestive enzymes, not hormones related to the sleep/wake cycle. The Hypothalamus (Choice D) is involved in regulating many bodily functions, including hormone secretion, but it does not directly secrete the hormone that regulates the sleep/wake cycle.
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