The physician has ordered Phenytoin (Dilantin) 250 mg three times a day for a client who is having seizures. The medication is supplied in 125 mg/5 mL oral suspension. How many teaspoons will the nurse administer per dose? (Provide both the appropriate number and tag).

A. The right arm: Measuring blood pressure in only one arm can miss important pressure discrepancies that occur with certain congenital heart defects, particularly those involving obstruction of systemic blood flow. Upper-extremity readings alone do not provide a complete hemodynamic picture.

B. The left arm: While the left arm may reflect systemic circulation, isolated measurement does not allow comparison between upper and lower extremities, which is essential for detecting defects such as coarctation of the aorta. A single-site reading limits diagnostic value.

C. All four extremities: Congenital heart defects, especially coarctation of the aorta, often cause higher blood pressure in the arms and lower pressure in the legs due to narrowing of the aorta distal to the subclavian arteries. Measuring all four extremities allows detection of pressure gradients that strongly suggest CHDs.

D. Both arms while the child is crying: Crying can falsely elevate blood pressure due to sympathetic stimulation and does not provide reliable or comparative data. Additionally, measuring only the arms fails to assess lower-extremity perfusion differences critical in CHD evaluation.

A. Oral contraceptives: Oral contraceptives regulate hormonal cycles to prevent ovulation and pregnancy but do not provide any barrier to infectious agents. They offer no protection against sexually transmitted infections (STIs), including HIV, chlamydia, or gonorrhea.

B. Tubal ligation: Tubal ligation is a permanent surgical method that blocks the fallopian tubes to prevent pregnancy. While highly effective for contraception, it does not prevent the transmission of sexually transmitted infections because it does not provide a barrier between partners.

C. Male or female condoms: Condoms act as a physical barrier preventing the exchange of bodily fluids during sexual activity, reducing the risk of pregnancy and transmission of STIs. Correct and consistent use significantly lowers exposure to pathogens such as HIV, HPV, chlamydia, and gonorrhea.

D. Intrauterine device: IUDs, whether hormonal or copper, provide long-term prevention of pregnancy by affecting implantation or sperm motility. They do not protect against STIs, as they do not prevent contact with infectious secretions during sexual activity.