Before administering the hepatitis B vaccine to a newborn infant, what should the nurse do?
- A. Request parental consent to administer the vaccine.
- B. Check the infant for jaundice.
- C. Check the infant's temperature.
- D. Obtain parental consent to administer the vaccine.
Correct Answer: D
Rationale: Before administering the hepatitis B vaccine to a newborn infant, the nurse must obtain parental consent. Hepatitis B vaccine is typically given at birth, 1 month, and 6 months of age. Checking the infant for jaundice, checking the temperature, and requesting a hepatitis blood screen are unnecessary in this context. Parental consent is crucial for any medical intervention involving minors.
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A preschooler has successfully completed the test item 'counts 5 blocks' on the Denver II test. This pass is evidence of which of the following developmental concepts?
- A. centration
- B. causality
- C. nonreversibility
- D. conservation
Correct Answer: D
Rationale: The ability of a preschooler to move five blocks to a piece of paper and state there are five blocks on the paper is evidence that the preschooler has the ability of conservation. This concept refers to the fact that the quantity of something doesn't change just because the shape, contour, and so on has changed. Five blocks are still five blocks, whether they are lying beside the paper, stacked on the paper, or moved to the paper. Centration is the ability to concentrate on one feature of a situation while neglecting all other aspects. Causality is based on the sequence of events, one event ordinarily following another. Non-reversibility refers to the inability of preschoolers to reverse their operations. They are only able to think forward, not retrace or reverse their thought processes.
A hepatitis B screen is performed on a pregnant client, and the results indicate the presence of antigens in the client's blood. On the basis of this finding, the nurse makes which determination?
- A. Hepatitis immune globulin and vaccine will be administered to the newborn infant soon after birth
- B. The results are negative.
- C. The results indicate that the mother does not have hepatitis B
- D. The client needs to receive the hepatitis B series of vaccines.
Correct Answer: A
Rationale: A hepatitis B screen is performed to identify antigens in maternal blood. If antigens are present, it indicates that the mother is a carrier, and the newborn will need to receive hepatitis immune globulin and vaccine soon after birth to prevent transmission. Therefore, choice A is correct. Choices B and C are incorrect because the presence of antigens indicates a positive result, not a negative one or the absence of hepatitis B in the mother. Choice D is incorrect as it suggests the client needs to receive the hepatitis B series of vaccines, which is not the immediate action required when antigens are found in the maternal blood.
Intramuscular (IM) phytonadione (vitamin K) 0.5 mg is prescribed for a newborn. After the medication is prepared, in which anatomic site does the nurse administer it?
- A. Rectus femoris muscle
- B. Deltoid muscle
- C. Gluteal muscle
- D. Vastus lateralis muscle
Correct Answer: D
Rationale: Vitamin K is administered to newborn infants to help prevent hemorrhagic disease. The best site for intramuscular injection in infants is the vastus lateralis muscle. This site is preferred due to its location away from the sciatic nerve, femoral artery, and vein, reducing the risk of complications. The rectus femoris muscle may be used if necessary; however, it is less favorable than the vastus lateralis due to its proximity to vital structures, making injections there more hazardous. The deltoid muscle is not typically used for IM injections in newborns. The gluteal muscles should be avoided until the child has been walking for at least a year, as they are poorly developed and close to the sciatic nerve.
A pregnant client is scheduled to undergo a transabdominal ultrasound, and the nurse provides information to the client about the procedure. The nurse provides which information?
- A. The procedure typically takes 10 to 30 minutes.
- B. She may need to drink fluids before the test and may not void until the test has been completed.
- C. A probe coated with gel will be inserted into the vagina.
- D. She will be positioned on her back, with her head elevated and turned slightly to one side.
Correct Answer: B
Rationale: The correct answer is that the client may need to drink fluids before the test and may not void until the test has been completed. For a transabdominal ultrasound, the woman is positioned on her back with her head elevated and turned slightly to one side to prevent supine hypotension. A wedge or rolled blanket is placed under one hip to help her maintain this position comfortably. If a full bladder is necessary, the woman is instructed to drink several glasses of clear fluid 1 hour before the test and told that she should not void until the test has been completed. Warm mineral oil or transmission gel is spread over her abdomen, and the sonographer slowly moves a transducer over the abdomen to obtain a picture. The procedure typically takes 10 to 30 minutes, making choice A incorrect. Choice C is incorrect because a probe is not inserted into the vagina for a transabdominal ultrasound. Choice D is incorrect because the woman is positioned on her back with her head elevated and turned slightly to one side, not specifically on her back.
A nurse preparing to examine a client’s eyes plans to perform a confrontation test. The nurse tells the client that this test measures which aspect of vision?
- A. Near vision
- B. Color vision
- C. Distant vision
- D. Peripheral vision
Correct Answer: D
Rationale: The correct answer is D: Peripheral vision. The confrontation test is a gross measure of peripheral vision. It compares the client’s peripheral vision with the nurse’s, assuming that the nurse’s vision is normal. During the test, the nurse positions themselves at eye level with the client, about 2 feet away, and directs the client to cover one eye with an opaque card. The nurse covers the eye opposite the client’s covered one and slowly moves a target (like a pencil) from the periphery in several directions. The client is asked to indicate when they see the target, which should coincide with when the nurse sees it. Near vision is tested using a handheld vision screener with various sizes of print, color vision with the Ishihara test, and distant vision with a Snellen chart. Therefore, choices A, B, and C are incorrect as they do not measure peripheral vision, which is the focus of the confrontation test.