Which of the following blood types would the nurse identify as the rarest?

Correct Answer: B

Rationale: The correct answer is B (AB). AB blood type is the rarest because it is a result of inheriting both A and B alleles, making it less common in the population. AB individuals can only receive blood from other AB individuals due to their unique antigens. Blood types A, B, and O are more common in the population, with O being the most common as it is the universal donor. Blood type A and B are more common than AB since they only require one allele for their respective antigens. Thus, the rarity of AB blood type is due to the inheritance of both A and B alleles, making it the least common among the choices provided.

Correct Answer: B

Rationale: The correct answer is B because hyperkalemia presents with symptoms such as muscle weakness, diarrhea, and ECG changes. Muscle weakness is a common sign due to potassium's effect on neuromuscular function. Diarrhea can lead to potassium loss. ECG changes, such as peaked T waves and widened QRS complexes, indicate cardiac involvement. Assessing for these symptoms helps monitor the severity of hyperkalemia and guide treatment. Other choices are incorrect because assessing for fever and chest pain (choice A) are not specific to hyperkalemia. Encouraging fluid restriction (choice C) may not directly address hyperkalemia. Preparing for a cardiac ultrasound (choice D) is not an immediate intervention for hyperkalemia.

Correct Answer: A

Rationale: The correct answer is A: Have a digital rectal examination and prostate-specific antigen (PSA) test done yearly. This is because regular screening with both tests can help detect prostate cancer early. The digital rectal exam allows the doctor to feel for any abnormalities in the prostate gland, while the PSA test measures the levels of a specific protein produced by the prostate gland. If there are any concerning findings, further diagnostic tests can be done to confirm prostate cancer. Choice B is incorrect because transrectal ultrasound is not a recommended screening test for prostate cancer. Choice C is incorrect as testicular self-examinations are for detecting testicular cancer, not prostate cancer. Choice D is incorrect as CBC, BUN, and creatinine levels are not specific tests for prostate cancer screening.

Correct Answer: B

Rationale: The correct answer is B: Ototoxic. Ototoxic refers to substances that are harmful to the ear, potentially causing hearing loss or damage. The prefix "oto-" specifically relates to the ear. Otoplasty (A) is a surgical procedure to reshape the ear, not related to toxicity. Otalgia (C) refers to ear pain, not toxicity. Tinnitus (D) is a symptom of ringing in the ears, not directly related to toxicity. Therefore, the term "ototoxic" is the best indicator of a substance being toxic to the ear due to its specific reference to ear toxicity.

Correct Answer: B

Rationale: The correct answer is B: Ask the patient to describe the type of reaction. This is the first action the nurse should take to assess the severity of the latex allergy and determine appropriate interventions. By gathering more information about the reaction, the nurse can better understand the potential risks and provide safe care. Summary of other choices: A: Immediately placing the patient in isolation is unnecessary and not indicated based solely on the patient's latex allergy. C: Proceeding to the termination phase of the interview is premature without fully assessing the patient's allergy. D: Documenting the allergy is important but should not be the first action without assessing the reaction itself.

Correct Answer: B

Rationale: The correct answer is B (AB). AB blood type is the rarest because it is a result of inheriting both A and B alleles, making it less common in the population. AB individuals can only receive blood from other AB individuals due to their unique antigens. Blood types A, B, and O are more common in the population, with O being the most common as it is the universal donor. Blood type A and B are more common than AB since they only require one allele for their respective antigens. Thus, the rarity of AB blood type is due to the inheritance of both A and B alleles, making it the least common among the choices provided.

Correct Answer: C

Rationale: The correct answer is C: Asymmetry. The ABCD method is a mnemonic used for assessing skin lesions for possible skin cancer. The A in ABCD stands for Asymmetry, indicating that the lesion is not symmetrical in shape or color. Skin cancers often exhibit asymmetrical features. Actinic (Choice A) refers to sun damage, Arcus (Choice B) is a term related to the eye, and Assessment (Choice D) is a general term that does not specifically relate to skin lesion evaluation. By focusing on asymmetry, healthcare providers can identify potential skin cancer lesions early for further evaluation and treatment.

Correct Answer: A

Rationale: The correct answer is A: Disturbed thought processes. This is the problem statement because it identifies the specific nursing diagnosis that reflects the client's cognitive impairment. "Disturbed thought processes" directly addresses the issue the nurse is observing in the client. The other choices are not the problem statement. "Related to" is the etiology or cause of the problem, "Alzheimer’s disease" is the medical condition, and "Incoherent language" is the defining characteristic or evidence of the problem. Therefore, A is the correct answer as it clearly states the client's primary issue.

Correct Answer: B

Rationale: The correct answer is B because starting birth control pills does not protect against HIV transmission to the baby during pregnancy. The other choices demonstrate understanding of HIV transmission risks and prevention methods. A shows awareness of vertical transmission, C recognizes that not all babies born to HIV-positive mothers are infected, and D acknowledges the potential need for a C-section to reduce transmission risk. Starting birth control pills is unrelated to preventing mother-to-child HIV transmission during pregnancy.