Correct Answer: C

Rationale: The correct answer is the non-rebreather mask. This oxygen delivery system has a one-way valve that prevents exhaled air from entering the reservoir bag and one or more valves covering the air holes on the face mask itself to prevent the inhalation of room air but allow exhalation of air. When a tight seal is achieved around the mask, up to 100% of oxygen is available. Choice A, the Venturi mask, delivers precise oxygen concentrations but not as high as the non-rebreather mask. Choice B, the partial rebreather mask, allows the client to rebreathe some exhaled air, resulting in lower oxygen concentrations than the non-rebreather mask. Choice D, the simple face mask, delivers low to moderate oxygen concentrations and is not designed to provide the highest concentrations like the non-rebreather mask.

Correct Answer: A

Rationale: The correct answer is to ask the client if he has noticed any bleeding or dark stools. Normal hemoglobin for males is 13.0 - 18 g/dl, and normal hematocrit for males is 42 - 52%. The values of hemoglobin and hematocrit provided for the client are below normal, indicating mild anemia. The first step for the nurse is to inquire about any signs of bleeding or changes in stools that could suggest bleeding from the gastrointestinal tract. This helps in assessing the possible cause of the low hemoglobin and hematocrit levels. The other options are not appropriate as calling 911 and going to the emergency department immediately is not warranted for mild anemia, scheduling a repeat test in 1 month delays addressing the current concern, and referring the client to a hematologist may be premature without investigating the cause of the low levels first.

Correct Answer: A

Rationale: When assessing for signs of developing pressure ulcers in a client with dark skin, traditional signs like blanching may not be evident. In individuals with darker skin tones, the skin of an early pressure ulcer may present with a purple or bluish hue. This discoloration can be a crucial indicator of compromised circulation and tissue damage. Capillary refill, blanching, and tenting are more commonly used in the assessment of skin integrity and hydration levels but may not be as reliable in individuals with darker skin tones, making the purple/bluish color a key finding in this context.

Correct Answer: B

Rationale: Massage the fundus. The nurse's first action should be to massage the fundus until it is firm as uterine atony is the primary cause of bleeding in the first hour after delivery. Checking vital signs, offering a bedpan, or checking for perineal lacerations are important assessments but addressing the boggy uterus and vaginal bleeding due to uterine atony takes precedence in this situation.

Correct Answer: B

Rationale: The correct response is, 'What have you done that you feel most guilty about and what steps can you begin to take to help you lessen this guilt?' This response encourages the client to reflect on their actions, identify sources of guilt, and develop a plan to address and reduce these feelings constructively. Choice A is incorrect as it dismisses the client's guilt as typical, potentially invalidating their emotions. Choice C is incorrect as it suggests avoiding guilty feelings by turning to substance use, which is counterproductive. Choice D is incorrect as it focuses on the negative consequences of the client's actions without offering a constructive way to address and alleviate guilt.