Adult Health Nursing Study Guide Answers

Correct Answer: C

Rationale: In a missed abortion, the embryo has died, but the products of conception remain in the uterus, leading to the visualization of a gestational sac without an embryo on ultrasound. This is a type of missed miscarriage where the woman may not have any symptoms initially and the diagnosis is made during a routine ultrasound. The most common presenting symptom is painless vaginal bleeding. The absence of an embryo within the gestational sac can be confirmed through serial ultrasound examinations showing no fetal growth or cardiac activity. It is important for healthcare providers to provide appropriate counseling and management options to support the patient through this emotional experience.

Correct Answer: D

Rationale: Using aseptic technique and sterile equipment during catheter insertion is crucial for minimizing the risk of infection during bladder catheterization. Aseptic technique involves maintaining a sterile field, washing hands thoroughly, using sterile gloves, and ensuring that all equipment used is sterile. By following these practices, the nurse can prevent introducing bacteria into the urinary tract, reducing the likelihood of infection in the patient. While cleansing the perineal area with antiseptic solutions is important for general hygiene, the priority for infection prevention during catheterization lies in maintaining a sterile environment during the procedure. Administering prophylactic antibiotics is not routinely recommended for catheterization unless there are specific risk factors present.

Correct Answer: A

Rationale: Nulliparity, which refers to never having given birth to a child, is the most common risk factor for the development of ovarian cancer. Women who have never been pregnant have a higher risk of developing ovarian cancer compared to those who have had children. This association is believed to be related to the uninterrupted ovulation cycles that nulliparous women experience, leading to changes in the surface epithelium of the ovary that predispose them to cancer development. Conversely, factors like early menarche, late menopause, and a family history of breast cancer are also associated with an increased risk of ovarian cancer but are not as commonly observed as nulliparity in the general population.

Correct Answer: B

Rationale: The research design being referred to in the question is an experimental design. An experimental study involves the manipulation of an independent variable, which is the intervention in this case, to determine its effect on a dependent variable. "Blinding" in research refers to the practice of withholding information about the intervention from certain individuals involved in the study, such as researchers, participants, or outcome assessors. Blinding is commonly used in experimental studies to reduce bias and ensure the integrity of the study results. This combination of intervention and blinding is a hallmark of experimental research designs.

Correct Answer: C

Rationale: Checking the humidifier's water regularly is the priority precautionary measure that should be done by the nurse during oxygen therapy. Maintaining adequate water in the humidifier ensures proper humidification of the oxygen delivered to the patient, helping prevent mucous membrane dryness and irritation. Dry mucous membranes can lead to discomfort, increased risk of infection, and potential damage to the respiratory system. Therefore, ensuring the humidifier's water level is appropriate is crucial for the safety and well-being of the patient receiving oxygen therapy. Limiting visitors, attaching "No Smoking" signage, and connecting the bait to the oxygen tank are important precautions as well, but checking the humidifier's water is the priority measure in this scenario.