ACE LEARNERS

Why do you pull back on the plunger of a local anesthetic before injecting? - CORRECT ANSWER Helps avoid injecting local anesthetic directly into a blood vessel Why are local anesthetics combined with vasoconstrictors? - CORRECT ANSWER To slow uptake and reduce toxicity, to increase duration, and decrease bleeding at surgical site What is the most common side effect of propofol (Diprivan)? - CORRECT ANSWER Decreases blood pressure What are two of the most common vasoconstrictor...

Deoxygenated blood flows from the right ventricle into: - CORRECT ANS the pulmonary artery Blood flow from the right side of the heart to the left side of the heart is called: - CORRECT ANS pulmonary circulation The heart contracts to pump blood during: - CORRECT ANS systole Blood flows from the heart through the body in the following order: - CORRECT ANS arteries, arterioles, capillaries, venues, veins AACVV Oxygen is carried in the blood primarily: - CORRECT ANS o...

A patient who is a 72 year old male presents for his implant surgery. He has a history of an MI 6 years ago with angioplasty and a stent. He tells you that he stopped his aspirin a week ago (not instructed by his physician but he just did that on his own). Before you start, he complains of a vague chest pain, almost like indigestion, but it is radiating to his left arm. He is also diaphoretic (sweating). Your diagnosis (what is causing it) for this patient is: - CORRECT ANS Angina, possibl...

Your patient arrives for a 1:30 pm surgery and admits he had a sip of water at 1:00pm so he has been NPO for only 30 mins. You tell him: - CORRECT ANSWER its ok to proceed but we must wait 1.5 hours There are two main categories of local anesthesia used in dentistry. The most common category of local anesthetic used in oral surgery is an: - CORRECT ANSWER Amide You have a 68 yo male pt who has a history of HTN. He has a heart attack awhile back. When he had the heart attack he stat...

Overfitting - CORRECT ANS Number of factors is too close to or larger than number of data points -- fitting to both real effects and random effects. Comes from including too many variables! Ways to avoid overfitting - CORRECT ANS - Need number of factors to be same order of magnitude as the number of points - Need enough factors to get good fit from real effects and random effects Simplicity - CORRECT ANS Simple models are better than complex. When fewer factors exist, less dat...

1 day after surgery the pt reports an itchy red rash all over her body after taking Amoxicillin, your recommendation is: - CORRECT ANSWER Stop the amoxicillin and take over the counter benadryl A pt w/type 1 diabetes insulin dependent would typically be giving themselves insulin shots to control their blood glucose to control diabetes T or F - CORRECT ANSWER True compartment syndrome one can see increase pressure in forearm - CORRECT ANSWER This can be caused by venipuncture ...

Name the 4 valves in the heart - CORRECT ANSWER Tricuspid valve Aortic Valve Mitral Valve pulmonic Valve Where is the Tricuspid valve located? - CORRECT ANSWER Between the right atrium and right ventricle Where is the Mitral valve located? - CORRECT ANSWER Between the left atrium and the left ventricle Where is the Aortic valve located? - CORRECT ANSWER Between the aorta and the heart's left ventricle Where is the pulmonic valve located? - CORRECT ANSWER Bet...

Regional - CORRECT ANS Types of anesthesia include, local, _________, and general. Minimal sedation - CORRECT ANS • Normal response to verbal stimulation • Airway, ventilation and cardiovascular function unaffected Moderate sedation - CORRECT ANS • Purposeful response to verbal or tactile stimulation • Able to maintain airway independently & continuously • Cardiovascular function usually maintained Deep sedation - CORRECT ANS • An induced state of depres...

WASTEWATER PRACTICE EXAM 2023 QUESTIONS AND ANSWERS / WASTEWATER TREATMENT OPERATOR CERTIFICATION TEST #1/2/3/4// WASTEWATER TREATMENT OPERATOR CERTIFICATION TEST #2 2023 QUESTIONS AND ANSWERS ALREADY PASSED A+/ WATER TREATMENT OPERATOR CERTIFICATION STUDY GUIDE (AWWA) 2023 QUESTIONS AND ANSWERS ALREADY PASSED A+/PRACTICE CERTIFICATION EXAM

Odors occur when treatment becomes - CORRECT ANSWER Anaerobic What should an operator do before entering a manhole - CORRECT ANSWER Test for all hazardous gases and oxygen levels and ventilate the manhole before entering What treatment devices is commonly used to separate and remove large solids from raw wastewater - CORRECT ANSWER a mechanically raked bar screen What diseases are caused by pathogenic organisms that may be present in raw wastewater? - CORRECT ANSWER He...

What is the methane content in a properly operation anaerobic digester? A) 30 to 35% by volume B) 1 to 2% by volume C) 65 to 70% by volume D) 15 to 20% by volume - CORRECT ANSWER C) 65 to 70% by volume (v.2 pg 158) What will the addition of chlorine gas do to the pH of wastewater? A) Moderately increase pH B) pH will not be affected C) Significantly increase the pH D) Decrease the pH - CORRECT ANSWER D) Decrease the pH (v.1 pg 349-350) What is the purpose of a Parshall f...

What is the typical BOD removal efficiency in a primary clarifier? A) 10 to 15% B) 40 to 60% C) 20 to 50% D) 95 to 99% - CORRECT ANS C) 20 to 50% (v.1 pg 129) What does the "F" in F/M ratio represent? A) The microorganism population in the aeration tank B) The amount of filamentous bacteria in the activated sludge process C) The MLVSS in the aeration tank D) The food for the microorganisms flowing into the aeration tank, in lbs/day - CORRECT ANS D) The food for the micro...

Surface water runoff, storm water, sanitary and industrial. - CORRECT ANS A collection system that is called "combined" may carry this kind of wastewater: 2 - CORRECT ANS The flow in a collection system should be a minimum of ____ feet per second (FPS)? Solids will settle. - CORRECT ANS What will happen if the flow is too slow in a collection system? Odors, Corrosion, Hydrogen Sulfide Gas (all of the above) - CORRECT ANS A short detention time in the collection system wi...

The first step in maintenance staff should take in properly locking and tagging out a piece of equipment is to - CORRECT ANS alert the operator on duty When working in an area with two or more floor coverings, be sure that they are always - CORRECT ANS Secured together When manually lifting any object be sure to - CORRECT ANS keep it close to your body and use leg strength Oxygen deficiency becomes a concern when the oxygen level in a confined space is less than - CORRECT AN...

WasteWater Sources & Characteristics: What is the most common reason for a wastewater to contain intermittent large amounts of sand, gravel, and grit? - CORRECT ANS storm events WasteWater Sources & Characteristics: Combined wastewater is defined as - CORRECT ANS sanitary wastewater and stormwater runoff WasteWater Sources & Characteristics: In general, the solids content in wastewater is about - CORRECT ANS 0.1% WasteWater Sources & Characteristics: In general, ...

1 mg/l is the same as 1 part per billion (ppb) True or False - CORRECT ANS False (v.1 pg 468) A SCADA system is capable of monitoring and controlling equipment from a remote location True or False - CORRECT ANS True (v.2 pg 627) A Discharge Monitoring Report is typically submitted to the regulatory agency on a daily basis True or False - CORRECT ANS False A mechanical seal is used to prevent leaks between the pump casing and shaft. True or False - CORRECT ANS ...

A continuously flowing watercourse - CORRECT ANS Perennial Stream Algae causes PH to ....... at night - CORRECT ANS Decrease What contributes to creation of algae blooms - CORRECT ANS Increased nutrients Iron is found mostly in what sources of water - CORRECT ANS Groundwater Also called the rule of reasonable sharing - CORRECT ANS Riparian Doctrine Water high in salinity and warm is - CORRECT ANS Low in dissolved oxygen Reservoir turnover - CORRECT AN...

Investigate immediately. - CORRECT ANS If a consumer complains about the drinking water characteristics, the operator should record the complaint and Operating ratio - CORRECT ANS What term is used when a water utility divides its total operating expenses into the total revenue? Daily - CORRECT ANS How often should operating data, such as flow rate, amount of water treated, dosage of chemical, and reservoir levels be recorded? Document that safe drinking water has been delivere...

What is the methane content in a properly operating anaerobic digester? - CORRECT ANS 65 to 70% by volume What will the addition of chlorine gas do to the pH of wastewater? - CORRECT ANS decrease the pH What is the purpose of a Parshall Flume? - CORRECT ANS Measure the flow rate What is the typical removal efficency of settleable solids in a primary clarifier? - CORRECT ANS 95 to 99% Which of the follwing is true about pumoing scum from a primary clarifier? - CORRECT A...

1. As a nurse manager, you observe a staff nurse who over the past few weeks has become withdrawn and has had several absences due to minor ailments. Your best action would be to: a. ask the nurse if she is okay during report. b. refer the nurse to the employee assistance program. c. ask the nurse to meet with you for a few minutes before she leaves for the day. d. write a note to the nurse advising her that her work attendance must improve. ANS: C Stress can lead to emotional symptoms...