Nursing Elites

1. What causes an older female client's hair to turn gray?

• A. ''A loss of melanin occurs in the normal aging process.''
• B. ''The number of sweat glands and blood vessels decreases in the normal aging process.''
• C. ''The skin on the scalp becomes thin, causing moisture to escape.''
• D. ''It is caused by hereditary factors.''

Correct answer: A

Rationale: The correct answer is 'A loss of melanin occurs in the normal aging process.' Graying hair in older adults is primarily due to a decrease in the number of melanocytes responsible for providing pigment and hair color. This reduction in melanin production leads to gray hair. The other choices are incorrect. While it is true that the skin becomes thinner with aging and the number of sweat glands and blood vessels decreases, these changes are not directly related to graying hair. Additionally, hereditary factors can influence when graying starts, but they do not cause the graying of hair itself.

2. To identify risk factors associated with the use of an oral contraceptive, which question should the nurse ask a client providing subjective data?

• A. Do you normally experience menstrual cramps with your periods?
• B. Do you smoke cigarettes?
• C. Are you currently dieting?
• D. Do you engage in strenuous exercise, such as jogging?

Correct answer: B

Rationale: The correct question the nurse should ask to identify risk factors associated with the use of an oral contraceptive is whether the client smokes cigarettes. Oral contraceptives are associated with an increased risk of thromboembolic phenomena, particularly when combined with other risk factors like smoking and a history of thrombosis. Other risk factors include hypertension, cerebrovascular disease, coronary artery disease, and postoperative thrombosis risk. Choices A, C, and D are not directly related to the increased risks associated with oral contraceptive use. Menstrual cramps, dieting, and strenuous exercise are not significant risk factors for thromboembolic events.

3. An allergic reaction is classified as what type of pharmacological effect?

• A. a therapeutic effect
• B. a side effect
• C. an adverse effect
• D. an incompatibility

Correct answer: C

Rationale: An allergic reaction is classified as an adverse effect because it is an unintended response to a medication that requires treatment. A side effect is an undesired but somewhat expected reaction to a drug that does not necessarily need intervention. Incompatibility refers to an unsuitable combination of substances that leads to an adverse effect. A therapeutic effect is the desired and intended outcome of a medication.

4. What is the threshold of dextrose concentrations that can safely be administered through a peripheral IV?

• A. Dextrose concentrations below 20% can be safely administered through a peripheral IV; dextrose concentrations above 20% should not be administered through a peripheral IV.
• B. Dextrose concentrations below 5% can be safely administered through a peripheral IV; dextrose concentrations above 5% should not be administered through a peripheral IV.
• C. Dextrose concentrations below 10% can be safely administered through a peripheral IV; dextrose concentrations above 10% should not be administered through a peripheral IV.
• D. Dextrose concentrations above 5% can be safely administered through a peripheral IV; dextrose concentrations below 5% should not be administered through a peripheral IV.

Correct answer: C

Rationale: Dextrose concentrations below 10% are considered safe for administration through a peripheral IV, as concentrations above this threshold can lead to phlebitis, causing inflammation of the vein. Concentrations above 10% should not be administered through a peripheral IV to prevent vein irritation. Choice A is incorrect because concentrations above 20% are too high for a peripheral IV. Choice B is incorrect as dextrose concentrations below 5% are too low to be effective. Choice D is incorrect because the statement is reversed, suggesting that concentrations above 5% are safe, which is not true.

5. When reviewing a client's medical notes to confirm pregnancy, a nurse should look for which finding to determine that pregnancy is confirmed?

• A. Amenorrhea
• B. Thinning of the cervix
• C. Palpable fetal movement
• D. Positive result on a home urine test for pregnancy

Correct answer: C

Rationale: To confirm pregnancy, the presence of palpable fetal movement is a positive indicator. Palpable fetal movement is a certain sign of pregnancy, known as a fetal movement felt by the examiner. Amenorrhea is a presumptive sign of pregnancy as it is reported by the woman but is not confirmatory. Thinning of the cervix (Hegar sign) is a probable sign of pregnancy, which is not confirmatory. A positive result on a home urine test for pregnancy is also a probable indicator. However, a positive pregnancy test result can sometimes yield false-positive results due to various factors like medication, recent pregnancy, or errors in reading.

Similar Questions